This is the 726HP build we did for one of our repeat customers in Washington.
4.060 bore x 4.125 stroke, 14:1, I converted the intake to a 4500 pattern with porting, Indy 230 heads I ported more, Indy oval intake, TD 1.7 rockers.
Using his OOTB 1050 dominator, TTI 1 7/8 x 3.5" headers it...