The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

snipescastle2 · 02-08-2017, 08:53 PM

Ok, after doing the Holley carb shuffle, I finally got everything
Set where it idles great, the float levels are on the money and I have the stock brass sight plugs back in the float bowls so no more worries about bonfires.
I do have a slight stumble when I nail the throttle, but otherwise runs good.
My plugs are a little dark brown-vs.tan, so maybe just a bit too rich on the jets.
It could be I need to use a larger pump squirter nozzle. My distributor is new, I installed an advance kit, and the weights are smooth and don't bind up. Not sure about the total number of degrees of advance I'm running, but I set the distributor to where it slightly pings on acceleration. I've been running premium for the most part, but sometimes run a blend of 60/40 premium/AV gas.
My engine is a 383 stroker with 6.0 rods, and flat tops, with 64cc chambers, (2.02/1.60 valves) I'm probably close to 11:1 compression ratio. Perhaps I need to adjust my gaps on the plugs a little smaller (they are at .045" now) I'll have to change my plugs and watch them closely and see what my changes do. I'd like to run a wide band O2 sensor to monitor my fuel/air ratio, but that is a bit
Pricey. I'll let you guys know what I find out.
Have a good one!
Ben

02-08-2017, 08:53 PM	#255
snipescastle2 Registered User Join Date: Mar 2009 Location: WARRENSBURG,MISSOURI,64093 Posts: 1,518	Re: Serious Black Ok, after doing the Holley carb shuffle, I finally got everything Set where it idles great, the float levels are on the money and I have the stock brass sight plugs back in the float bowls so no more worries about bonfires. I do have a slight stumble when I nail the throttle, but otherwise runs good. My plugs are a little dark brown-vs.tan, so maybe just a bit too rich on the jets. It could be I need to use a larger pump squirter nozzle. My distributor is new, I installed an advance kit, and the weights are smooth and don't bind up. Not sure about the total number of degrees of advance I'm running, but I set the distributor to where it slightly pings on acceleration. I've been running premium for the most part, but sometimes run a blend of 60/40 premium/AV gas. My engine is a 383 stroker with 6.0 rods, and flat tops, with 64cc chambers, (2.02/1.60 valves) I'm probably close to 11:1 compression ratio. Perhaps I need to adjust my gaps on the plugs a little smaller (they are at .045" now) I'll have to change my plugs and watch them closely and see what my changes do. I'd like to run a wide band O2 sensor to monitor my fuel/air ratio, but that is a bit Pricey. I'll let you guys know what I find out. Have a good one! Ben __________________ "Persistence is the twin sister of Excellence.one is a matter of quality,the other, a matter of time" “Serious Black” my 1971 Short Bed Fleetside Sold to an outstanding man in Lees Summit,Mo. “Gone, but by no means,Forgotten”