Joined
·
1,258 Posts
My brother used to street race a '64 GMC with a SM465 and would launch it in 1st gear. Not for the faint of heart. It sounded like a prehistoric monster howling. But it held together on some scary hole shots.
Gear ratio decision, 4.1 4.3 or 4.56?
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.
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.
1 - 1 of 1 Posts
1 - 1 of 1 Posts
