440RB / 500" Stroker 4.15 stroke .055" over 10.9 compression CNC ported INDY EZ heads Indy single plane with 1000HP Holley Comp Solid Flat tappet cam 1.6 Harland Sharp Rockers 763hp 680tq on 93 pump gas Best pass so far is 10.3 at 134 with a 3,800lb full weight street car and a 4 speed. Still working on chassis tuning.