1972 Ford Mustang Mach I {R-Code} ~ "Feared by Mopar or Falafelled'

I've always looked at the Cleveland engine much the same as the Thermoquad carburetor. Both had massive high performance potential, but both came out too late. Had the Cleveland come out in say, 65 I think that could have changed things considerably. They can eclipse the 600 HP mark pretty easily using stock block and heads and with stock bore and stroke with the 4V stuff. That's impressive no matter what for a small block.