I'm using the 850 Edlebrock RPM Quadrajet on my 69 GTO that's run 12.54 at 110. It's a 9.5:1 455 with RPM intake, ported 16 heads (245 at 550 lift), 2000 stall converter (may change that) and 3.55 gears. Should I go to an 800 double pumper for a mostly street car? Or some other carb?
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