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Gear ratio decision, 4.1 4.3 or 4.56?

1328 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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I would make sure the centrifugal isn't coming in until maybe 4500 or so as it might be what is making it doggy. Get another set of weights and drill an 1/8" hole in the end of them but install one at a time. That will tell you where you need it to come in. May need heavier ones or even leave a spring off. I would use 4.30s. Then a looser converter if you wanted more.
 
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