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Gear ratio decision, 4.1 4.3 or 4.56?

1338 Views 24 Replies 12 Participants Last post by  PHWOARchild
Currently a blast to drive but I want to try dial in the whole system even more, wondering of the 373 are just too mellow for what this combo needs? sometimes at part throttle acceleration it seems a little sluggish.. id like more instant snap if that makes sense..

Currently have 373, and its nice, but i wan to push the street factor the the limit - the 383 doesnt always have the brute low end of the big bocks, so some mods are necessary.

Cam is around 2000-6000 236° / 242°, 288° / 294°, 11:1 (installed straight up), 200/64cc alu heads, 5.7 rods. 850 dbl pumper brawler, Vic JR, 1-3/4 LT headers into 3 inch collector and 2.5 true duals. 373 posi, 2004R, 3k stall..

18-20 initial, vac adv disconnected .. Hei stock.
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Ok - I had mine rebuilt at art carr in Huntington beach 200 miles back- so far ive been happy but not sure if a better one will make that much of a difference? Im going to try a 750 and see if the performance increases..

higher stall or lower? currently 3200
Stall is going to be determined by the camshaft specs, as for the carburetor nowadays fuel injection delivers better performance and drive ability.
 
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