need help with my suspension 1970 gmc

[fatgump]

Originally Posted by Marv D

Ain't no secrets here, Motor made 666HP at 6400,<588 tq @ 4900> trans is a Hughes TH400 with a brake, Converter is a Midwest 4800 stall. 9" with 4.30 gear, Launch at 4500 on a rev limiter wired in with the brake. Tire is a Hoosier 33x17 QT Pros on a 15x15 rim @ 10.75 psi, 60' is 'usually' in the mid 1.4's,, on a loose track 1.5's. Going to get axle weights and verify total weight this week I hope.

666HP in Hell's training ground. Is there something your not telling us?