351 Cleveland Vs. 390

[macx]

PS - considering that light of a car, you might be better off keeping your (obviously?) 4bbl heads and going hydr roller cam with the retrofit lifters and an efi system like DFI or Holley - those beef up the bottom end quite a bit and wouldn't lose anything on the upper end. If you've got a stick, an aluminum flywheel lets the engine rev quicker, too, as it doesn't have to accelerate as much mass like in a heavy flywheel. I don't believe you could make a 390 nearly as responsive a motor without a lot of spending.