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Old 07-19-2009, 09:14 PM   #1
CrateCamaro
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Default Re: holley 750 D.P. carb jetting??

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Originally Posted by BlueOval Ralph View Post
Plug Power Valve, 77 or 78 main jets change High Speed bleeds from .026 prim, .031 sec to .026 square. Poen idle feed rest in meetring body .002 to .oo3 thou. Red pump cams 330) I think is number on cam.
Ralph
I just plugged mt pv as well in the front and found some consistancy increase but I picked up a part throttle choppy chug. I run front and rear jets squared and it runs great. This is for a dedicated track car and im not too sure how this would work on the street.
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Old 07-20-2009, 07:15 AM   #2
BlueOval Ralph
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Default Re: holley 750 D.P. carb jetting??

This is for track only if you try no powervalve on street it will be sloppy rich down low and fuel mileage will suffer.


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Originally Posted by CrateCamaro View Post
I just plugged mt pv as well in the front and found some consistancy increase but I picked up a part throttle choppy chug. I run front and rear jets squared and it runs great. This is for a dedicated track car and im not too sure how this would work on the street.

Last edited by BlueOval Ralph; 07-26-2009 at 08:14 AM.
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Old 07-26-2009, 05:16 AM   #3
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Default Re: holley 750 D.P. carb jetting??

i found most 4779 750 dp's to like around 72/82
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