Seeing as how my son started this post I'll drop my combo for all to scrutinize.
engine 446 ci big block
car 68 Roadrunner
weight 3926 with me in the seat
Trans is stock 23 spline A833 no mods.
trans fluid ATF dextron
Launch rpm 49-5600 rpm depending on track conditions.
shift 6400 rpm
trap rpm 6300
slick pressure anywhere from 15 - 19 psi
rear gear 4.56 Dana
Clutch is Center Force Dual Friction 11" with aluminum flywheel (13 pounds)
best et and mph is signature