I have a 5.7 Hemi in a 73 Challenger. The engine has drop in pistons, TSP cam 226/235 .582/.582 114+3, Prefix single plane intake, MPI with Holley 1000 cfm throttle body and a Torqstorm supercharger. The car weighs about 3700 lbs with driver. Best ET 10.31 at 132.70 mph with a really lazy 1.5649 60’ time. The car has been 1.43 60’ time with a 430 LA SBM. The car should run high 9s with a transbrake and launching with boost.