Chevelle Tech - View Single Post - Lean at High RPM
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post #13 of (permalink) Old Mar 26th, 20, 11:28 AM
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Join Date: Sep 2000
Location: Buffalo NY
Posts: 15,410
Re: Lean at High RPM

I'm late but will re-iterate what Bill said, ensure fuel level is correct, as a low level will lean it out top of pull for sure.

my "race" 850 is dumb simple old skool ( no adj bleeds) and works mint.... 77 w/085 PV primary, 80's w/045 in rear.

Same config run on dyno, AFR was perfect thru the pull. Jets wont matter in a assymetrical AFR problem like this.

ALSO, again shirt tailing on Bill, before you pull it apart, blast some carb cleaner down the orifices in the top of the air horn to ensure the air bleeds are clear.

So blast and check float HOT b4 any parts changes, which I dont think you need.

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