Tony The BBC was a 402 with 454 crank (434 cu) was 10 to 1 and had rec ports a 550 lift Chet herbert roller and the dual 600 carbs with Msd probillet . The Budget Mopar is 60 over , stock stroke 88cc 400 heads with stock valves , cam is a Purple "clone" flat tappet hyd , has 480 lift and 268 Advertized for stock shaft mounted valve train ("rough specs " the cam card is at the shop) The mopar will get a modified points dizzy and a single 750 Holley Honestly the BBC stroker was a beast at around 500 hp and loads of 4k torque , we "guesstimate" the Mopar to be closer to a conservative 400hp We're curious too but I dont belive the motors are "apples to apples" comparisons Tom