From what I've read Term heads and Cobra heads are the exact same.
uhhh....?
Mach 1's have the same heads as 2003-2004 Cobras.
are there any gains to having them
Mach 1's have the same heads as 2003-2004 Cobras.
and Ported Mach1 heads NEAR = ported FR500 heads from what i read