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07-16-2021, 03:15 PM | #1 | |
Registered User
Join Date: Apr 2013
Location: Colorado Springs, Colorado
Posts: 22
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Quote:
Any pictures I see of a similar carb on the internet shows another accelerator pump nozzle on the secondary side. https://www.holley.com/blog/post/how_to_cure_carburetor_stumble/ Posted via Mobile Device |
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07-16-2021, 08:08 PM | #2 | |
Registered User
Join Date: Dec 2006
Location: Glenpool OK
Posts: 255
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Re: 1969 C10 Holley Carb help please
Quote:
Your carburetor is a 670 street avenger. Great carburetor I've had the same one on 2 different trucks. It is a vacuum secondary carb so only a discharge nozzle and accelerator pump on the primary side. The pictures you see with 2 are mechanical secondary carbs "double pumpers" Holly has some great videos on tuning their carbs. You may be able to fix your hesitation by changing the pump cam. They sell an assortment and there is a chart showing which cams do what. I swapped the factory orange cam for a blue cam and it helped in my application. Your results may vary. |
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