Not Ranked
I put things pretty much back to the baseline. A .031 squirter is on order and I will install. It should show up on Friday.
The idle mixture screws are out 1/4 richer than best idle. The idle speed screw is in 1/4 turn more than .015 t slots showing. It is needed so I can drive the car until I find the real issue.
I am not convinced it is a carb problem, so I bumped the timing 3 degrees to see what happens. The car actually runs noticeably stronger, but still has the stumble. Timing is now back to where it was.
The stumble may occur off idle to, but it is most noticeable between 1500 to 3000.
I called Holley tech line - you just never know. They suggested going two sizes richer on the main metering jets. I am not sure at this point.
John
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