I am currently restoring my '70 Barracuda Gran Coupe Convertible, original 318 2-bl, 904 auto, 7-1/4 rear axle car. Metal work is complete. Original motor is gone; now has a 318 4-bl (from my '71 Cuda), 4-speed/pistol grip, 8-3/4 rear with 3:55 gears. Question: Keep the current drivetrain, or clone the car to a 440-6 or crate Hemi motor?? I don't really like cloning, but the original drivetrain is no longer in the car. Should I spend the $$ to get a period correct 440-6 or Hemi, or a new crate Hemi... what is the market out there spending on clones??