Lifetime Premium Member
Join Date: Jan 2005
Location: clarkridge, arkansas
Hi Everyone, After 13 Yrs w/ 71 elky restoration. I am finally in the test & tune stage and this big block should light up the tires w/o having to raise the rpms and dump the clutch but will not.
454,.30 over, GM perf aluminum head semi-open chamber 2.25 Exh and 1.88 int, speed pro pistons a pprx 9:1 Gm perf rods, Crane cam & kit 226/236 - 534/553, dual roller chain, pertronix flame thrower dist & coil, Holley 770 street avenger on winters LS 6 manifold, Timing 16 intial 34 total @ approx 3000rpm. R 44TS @ .045. I just adjusted floats and idle circuit and idles good for cam. 10 In vacuum @idle steady needle, cannot adjust any higher w/ idle screws. Ceramic coated hedmans and 2-1/2 SS exhaust. Backed by m22 w/ 323 gear.
I feel I am missing something w/ tune it should be more responsive. I did change vac secondary spring to yellow that help a little when you hit it. But dumping the clutch just ignites the tires and begins wheel hop. You know I had 7 SS BBs mostly 4 spds maybe the 30 years w/o it making me forget. Needs some tuning help.