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Author Topic:   Holley 4412 ?
34Racing
Member
posted May 15, 2003 06:05 PM
It could be a momentary lean condition, try a larger sqirter.
I would go 2 sizes up to start. Check Mortec.com, Holley Tuning Tips for more info.


garyl
Member
posted May 15, 2003 09:02 PM
check your fuel press. 7lbs is about maximum mabey lower your float some, could be alazy dist. [advance not coming in fast enough ect.] 2bls. are pickey off the corner if they are getting to much fuel or not burning what they getting because of related problems decussed here.


dirtracer50
Member
posted May 15, 2003 11:54 PM
I had this exact same problem a couple of years ago. I posted my question on here and a gentleman named Earl Parker helped me solve the problem. He could probably help you better than I can but here's what I know. Make sure that the idle transfer slot is square by adjusting the throttle shaft. Find out what kind of vacum you have at idle then get a power valve 1 to 1.5 inches lower than what your vacum is at idle. And possibly try a smaller squirter I now run a .021 size squirter on mine and it runs great. Hope this helps.


gerald berry jr
Member
posted May 16, 2003 07:57 AM
make sure accelerator pump diaphram is ok may need to use a 50cc pump if it only has a 30cc pump on it now.may need bigger squirter use at least a 28 also changing pump cam to a brown one will help. also adjust pump arm to have 1/16 inch play between pump arm,if its half pumped when you punch it off corner its not working. is your carb mounted sideways?

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34Racing
Member
posted May 16, 2003 10:12 AM
Try the 31,
I use a 31 on my 4412 and have no hesitation out of the corner.


34Racing
Member
posted May 18, 2003 01:30 PM
Thanks for all the help everyone. I just wasn't satisfied with the orange cam so I went back to the stock burgandy one. It seemed to solve my problem. I guess if it ain't broke don't fix it.

34Racing

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