How to tell the difference between 650 and 750 double pumper?
I was wondering how to tell the difference between a Holley 650 and 750 double pumper? I need a 750 double pumper and my cousin down the road has a holley carb and he's not to sure what it is. How can I differentiate the carb?
91 Firebird Formula
10.1 Comp 355 small block, 4 bolt main, Forged Internals. Blow-thru Holley 650 DP. Garrett GT4294 Turbocharger, JGS 50mm Wastegate & BOV. Homemade boost controller. Vic Jr Intake Manifold. 215cc Dart Iron Eagle Platnium Heads, Solid cam. T56 w/ Centerforce DF clutch. 3.73: Zexel Posi. Full aftermarket suspension. Mickey Thompson ET Streets on factory wheels. E85