BBC 555 with nitrous, dart crank(4.25) gm bowtie block(4.537) RHS heads, comp cam(800 lift), callies ultra rods(6.385)ibeam steel, manley pistons (14-1), total seal rings, comp front cover, msd ignition, crank trigger, edelbrock intake, comp rollers, and ultra rockers. quickfuel 1250 gas, nitrous outlet (400hp)addar. should do 1350 horse. no dyno time, new not run.