Start with stock jetting for a list 8007 390 holley.list 8007 390 (F)51,(R)plate 134-34 6.5 4160 Hope that is what you have.
Change the power valve to a lower #, like a 4.5.

Last edited by tlowe #1716; 10/25/12 12:00 AM.
Inliner Member 1716
65 Chevelle Wagon and 41 Hudson Pickup
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