My brother has a 67 coupe with a C code 289 motor, all stock except headers. Mine is a 91 5.0 with p/p heads, and maybe a cam. My question is, I might get new heads (thinkin thumper) sometime in the near future, and my brother wants to put my e7's on his 67 figuring they would be better than whats on there now. Would that work? His car is carbed of course and mine is efi.