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600 cfm is fine for a bb you could run a 750 but no real need to. either way your going to give the engine more air then a stock 2bbl tbi would. it still amuses me that it must have been a huge secret or some thing but ford 460's pre fuel injection ran 600 cfm carbs from the factory and man could they run.
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1976 Custom Deluxe SWB Med FMB.3/4 Drop.
Gen VI 454, Muncie HD 3 speed With Modified OE Hurst Shifter, 3.73 12 bolt, GMPP HO roller cam, Hooker headers, Performer intake with modified Q-jet, Accel distributor. Best 1/4 12.3 @108. Funnest run 19.84 @88 full 1/4 mile burn out.
1997 K1500 ext cab 5.7 stock except muffler
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