Hello all,
I have a 1972 Demon 4 speed, 3.91 gears, with a LA 410 CID stroker, it's 12.3-1 Comp, Ported Eddy heads with 2.055" intake valves, Hughes 242/246 @0.050 cam with 0.587/0.592 lift with Hughes 1.6 shaft rockers, Hughes PN 1129 springs installed with 145# closed pressure and 360# open...