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04-27-2021, 06:24 PM
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#1 |
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Registered User
Join Date: Aug 2018
Location: Coatesville, PA
Posts: 52
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Newly installed Holley Sniper EFI, only getting 60% throttle
Just wrapped up my Sniper install but I can only get up to 60% throttle open. I'm not sure of the history of my truck, I don't know if the linkage has been changed from stock or what so I'll attach a photo.
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04-27-2021, 06:38 PM
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#2 |
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Registered User
Join Date: Apr 2009
Location: PNW
Posts: 553
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Re: Newly installed Holley Sniper EFI, only getting 60% throttle
Did the carb you took off get more than 60%?
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04-27-2021, 06:42 PM
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#3 |
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Registered User
Join Date: Aug 2018
Location: Coatesville, PA
Posts: 52
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Re: Newly installed Holley Sniper EFI, only getting 60% throttle
I mean, it didn't have a handy computer screen to tell me but it definitely felt like it opened more.
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04-27-2021, 07:15 PM
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#4 |
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Registered User
Join Date: Jan 2017
Location: Mason City, IA
Posts: 157
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Re: Newly installed Holley Sniper EFI, only getting 60% throttle
You may need to get an adjustable mount for the throttle cable. Is there another spot on the sniper linkage that may give you more travel?
Jim |
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04-27-2021, 09:18 PM
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#5 |
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Who Changed This?
 
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,081
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Re: Newly installed Holley Sniper EFI, only getting 60% throttle
It would appear that there is more adjustment on the link at the back of the throttle linkage. Have someone hold the pedal all the way down (or put a weight on it to hold it). Remove the linkage from the lever at the firewall and adjust the nut so that the throttle is all the way open. Then put it all back together.
__________________
~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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04-27-2021, 10:38 PM
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#6 |
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Senior Member
Join Date: Mar 2005
Location: Jurupa Valley, Ca
Posts: 1,209
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Re: Newly installed Holley Sniper EFI, only getting 60% throttle
It looks like you have the rod adjusted up quite a bit. Is it possible the end of the rod is hitting the firewall?
__________________
Terry 1970 Custom Camper/C20 , GM Crate 350/7004R, Dana 60, factory AC |
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04-27-2021, 10:50 PM
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#7 | |
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Who Changed This?
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,081
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Re: Newly installed Holley Sniper EFI, only getting 60% throttle
Quote:
__________________
~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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04-27-2021, 11:35 PM
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#8 |
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Registered User
Join Date: Mar 2015
Location: washington
Posts: 2,157
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Re: Newly installed Holley Sniper EFI, only getting 60% throttle
I think you call it Tdangle. Reverse the rod. Then be sure the overhang doesn't hang up on the bottom of the air cleaner.
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04-28-2021, 07:28 AM
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#9 |
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Registered User
Join Date: Feb 2016
Location: Trenton,Ontario & South Carolina
Posts: 755
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Re: Newly installed Holley Sniper EFI, only getting 60% throttle
Also check on some grommets for the spark plug wires,if you get a rub there,probably not good
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