edelbrock rejet job???? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jddowell · 02-07-2003, 04:26 PM

I have a Edelbrock 1406 carb. on my old 72 that I want to rejet a little leaner. I ordered new jets "#1426-.095, new rods"#1456, and a set of different springs. According to the chart I will be leaning down to the #7 position. My question is how hard of a job is this? According to the manual it is suppose to be a simple job but, I would like input from ordinary people who have done it, and their opion as to what I should be aware of before I start.
Thanks

Bill72BB · 02-07-2003, 04:36 PM

jddowell

Mess with mine quite a bit the metering rods and springs are a piece of cake ,takes about 5 min. once you do it a few times.
You don't have to take the carb off to change the jet's but I always do it's a lot more convient .
I assume you are changing the primary jet's ?as the secondary's are already .095 .
I also check the needle and seat and float level when I have the carb off.

crazy longhorn · 02-07-2003, 04:44 PM

you might check the float levels before you start jetting......my 1407 had a float too high(bounced around in shipping Im sure), & it ran very rich. I did also lean the cruise mode a tad.....crazyL

HotRod929 · 02-07-2003, 05:34 PM

I want to get more power/performance out of my 1406. What jet sizes should I go with? I just have the ones that came with the carb. Thanks

HotRod

crazy longhorn · 02-07-2003, 06:36 PM

Hotrod, every combo tunes a little different. Best bet is to go into edelbrock's site ...... http://www.edelbrock.com/ , & look under carbs/ tuning tips. Im a beleiver in "read/learn all you can about the equip you are dealing with", then go to town. Good luck.....crazyL

Bill72BB · 02-07-2003, 06:58 PM

HotRod929 ; I agree with Crazy Longhorn , I'll bet you are probably missing the massive amount of fuel the Q-jet dumped when you hit the secondarie's . if so my first suggestion would be to go to a larger secondary jet's ,the 1406 came with .095 , so you may want to go to a .o98 or .101 .for starters

crazy longhorn · 02-07-2003, 07:18 PM

Bill nailed that square on, the Q jet had a bigger "seat of the pants" feel when those big seconds crashed open. I think the squarebore carbs have a little more across the band, but you will also pay for a little more "motion lotion"....the spreadbore are more economical........crazyL

HotRod929 · 02-07-2003, 07:22 PM

Bill72BB - Which ones would you recomend trying first? I really do miss the feel when the secondaries on the Q-jet opened up.

I dont mind fuel economy much just want that feal back again!

HotRod

Bill72BB · 02-07-2003, 07:30 PM

HotRod929

I tried a couple and settled on the .101 ,that is what I've been running in the secondaries .

HotRod929 · 02-07-2003, 07:42 PM

How bout the primaries...you think they could go bigger?

HotRod

Bill72BB · 02-07-2003, 08:30 PM

They are .098 stock ,I never tried a larger jet but I tried a few different Metering rods ,to help richen up at idle and cruising speed ,just went back to the stock one's to try to help gas milage.The one's I took out were 73/42 ,but I,m running a BB .

02-07-2003, 04:36 PM	#2
Bill72BB Thats the Hillbilly way Join Date: Jul 2001 Location: Torrance,Ca Posts: 5,980	jddowell Mess with mine quite a bit the metering rods and springs are a piece of cake ,takes about 5 min. once you do it a few times. You don't have to take the carb off to change the jet's but I always do it's a lot more convient . I assume you are changing the primary jet's ?as the secondary's are already .095 . I also check the needle and seat and float level when I have the carb off. __________________ BILL Torrance Calif 90504 Member DUF Club Member Old Farts Club 72 3/4ton Custom Camper BB402/400 trans Dynomax Cerama-coat headers , Hei distributor ,Edelbrock 1411 air,ps,pb,leafsprings ,98 chevy 60/40 seat,S10 shoulder belts tilt,3.54 Dana 60 rear. 16" Eagle wheels with LT265/75 16 tires,Gaylord Lid,H4 headlights with 100W relay conversion. " If I knew I was going to live this long I would have taken better care of myself " Marriage changes passion...suddenly you're in bed with a relative. A GUY'S PRAYER.... Lord, I pray for a nympho with huge boobs who owns a liquor store and likes to fish and hunt and has a Harley .Amen , Last edited by Bill72BB; 02-07-2003 at 04:39 PM.

02-07-2003, 04:44 PM	#3
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,403	you might check the float levels before you start jetting......my 1407 had a float too high(bounced around in shipping Im sure), & it ran very rich. I did also lean the cruise mode a tad.....crazyL __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

02-07-2003, 05:34 PM	#4
HotRod929 Registered User Join Date: Mar 2002 Location: Bondurant, IA but in Worcester, MA for school Posts: 767	I want to get more power/performance out of my 1406. What jet sizes should I go with? I just have the ones that came with the carb. Thanks HotRod __________________ 1970 Chevy C-20 350 V-8 Turbo 350 w/ shift kit Dana 60 w/ 4.10 gears AND Powr-Loc POSI New Additions: Summit Headers 135amp alternator Proform HEI Edelbrock 1406 600cfm carb Sunpro Tach Powr-Loc POSI Edelbrock Performer RPM Intake MSD 6A Ignition Box AIM: HotRod929 Visit My Site: http://1970chevy.netfirms.com/

02-07-2003, 06:36 PM	#5
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,403	Hotrod, every combo tunes a little different. Best bet is to go into edelbrock's site ...... http://www.edelbrock.com/ , & look under carbs/ tuning tips. Im a beleiver in "read/learn all you can about the equip you are dealing with", then go to town. Good luck.....crazyL __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

02-07-2003, 06:58 PM	#6
Bill72BB Thats the Hillbilly way Join Date: Jul 2001 Location: Torrance,Ca Posts: 5,980	HotRod929 ; I agree with Crazy Longhorn , I'll bet you are probably missing the massive amount of fuel the Q-jet dumped when you hit the secondarie's . if so my first suggestion would be to go to a larger secondary jet's ,the 1406 came with .095 , so you may want to go to a .o98 or .101 .for starters __________________ BILL Torrance Calif 90504 Member DUF Club Member Old Farts Club 72 3/4ton Custom Camper BB402/400 trans Dynomax Cerama-coat headers , Hei distributor ,Edelbrock 1411 air,ps,pb,leafsprings ,98 chevy 60/40 seat,S10 shoulder belts tilt,3.54 Dana 60 rear. 16" Eagle wheels with LT265/75 16 tires,Gaylord Lid,H4 headlights with 100W relay conversion. " If I knew I was going to live this long I would have taken better care of myself " Marriage changes passion...suddenly you're in bed with a relative. A GUY'S PRAYER.... Lord, I pray for a nympho with huge boobs who owns a liquor store and likes to fish and hunt and has a Harley .Amen , Last edited by Bill72BB; 02-07-2003 at 07:11 PM.

02-07-2003, 04:26 PM	#1
jddowell Registered User Join Date: Aug 2002 Location: Cushing, Oklahoma Posts: 20	edelbrock rejet job???? I have a Edelbrock 1406 carb. on my old 72 that I want to rejet a little leaner. I ordered new jets "#1426-.095, new rods"#1456, and a set of different springs. According to the chart I will be leaning down to the #7 position. My question is how hard of a job is this? According to the manual it is suppose to be a simple job but, I would like input from ordinary people who have done it, and their opion as to what I should be aware of before I start. Thanks

02-07-2003, 07:18 PM	#7
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,403	Bill nailed that square on, the Q jet had a bigger "seat of the pants" feel when those big seconds crashed open. I think the squarebore carbs have a little more across the band, but you will also pay for a little more "motion lotion"....the spreadbore are more economical........crazyL __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

02-07-2003, 07:22 PM	#8
HotRod929 Registered User Join Date: Mar 2002 Location: Bondurant, IA but in Worcester, MA for school Posts: 767	Bill72BB - Which ones would you recomend trying first? I really do miss the feel when the secondaries on the Q-jet opened up. I dont mind fuel economy much just want that feal back again! HotRod __________________ 1970 Chevy C-20 350 V-8 Turbo 350 w/ shift kit Dana 60 w/ 4.10 gears AND Powr-Loc POSI New Additions: Summit Headers 135amp alternator Proform HEI Edelbrock 1406 600cfm carb Sunpro Tach Powr-Loc POSI Edelbrock Performer RPM Intake MSD 6A Ignition Box AIM: HotRod929 Visit My Site: http://1970chevy.netfirms.com/

02-07-2003, 07:30 PM	#9
Bill72BB Thats the Hillbilly way Join Date: Jul 2001 Location: Torrance,Ca Posts: 5,980	HotRod929 I tried a couple and settled on the .101 ,that is what I've been running in the secondaries . __________________ BILL Torrance Calif 90504 Member DUF Club Member Old Farts Club 72 3/4ton Custom Camper BB402/400 trans Dynomax Cerama-coat headers , Hei distributor ,Edelbrock 1411 air,ps,pb,leafsprings ,98 chevy 60/40 seat,S10 shoulder belts tilt,3.54 Dana 60 rear. 16" Eagle wheels with LT265/75 16 tires,Gaylord Lid,H4 headlights with 100W relay conversion. " If I knew I was going to live this long I would have taken better care of myself " Marriage changes passion...suddenly you're in bed with a relative. A GUY'S PRAYER.... Lord, I pray for a nympho with huge boobs who owns a liquor store and likes to fish and hunt and has a Harley .Amen ,

02-07-2003, 07:42 PM	#10
HotRod929 Registered User Join Date: Mar 2002 Location: Bondurant, IA but in Worcester, MA for school Posts: 767	How bout the primaries...you think they could go bigger? HotRod __________________ 1970 Chevy C-20 350 V-8 Turbo 350 w/ shift kit Dana 60 w/ 4.10 gears AND Powr-Loc POSI New Additions: Summit Headers 135amp alternator Proform HEI Edelbrock 1406 600cfm carb Sunpro Tach Powr-Loc POSI Edelbrock Performer RPM Intake MSD 6A Ignition Box AIM: HotRod929 Visit My Site: http://1970chevy.netfirms.com/

02-07-2003, 08:30 PM	#11
Bill72BB Thats the Hillbilly way Join Date: Jul 2001 Location: Torrance,Ca Posts: 5,980	They are .098 stock ,I never tried a larger jet but I tried a few different Metering rods ,to help richen up at idle and cruising speed ,just went back to the stock one's to try to help gas milage.The one's I took out were 73/42 ,but I,m running a BB . __________________ BILL Torrance Calif 90504 Member DUF Club Member Old Farts Club 72 3/4ton Custom Camper BB402/400 trans Dynomax Cerama-coat headers , Hei distributor ,Edelbrock 1411 air,ps,pb,leafsprings ,98 chevy 60/40 seat,S10 shoulder belts tilt,3.54 Dana 60 rear. 16" Eagle wheels with LT265/75 16 tires,Gaylord Lid,H4 headlights with 100W relay conversion. " If I knew I was going to live this long I would have taken better care of myself " Marriage changes passion...suddenly you're in bed with a relative. A GUY'S PRAYER.... Lord, I pray for a nympho with huge boobs who owns a liquor store and likes to fish and hunt and has a Harley .Amen , Last edited by Bill72BB; 02-07-2003 at 08:32 PM.



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