Quote Originally Posted by kevinvinv View Post
Why do we think a higher pressure pump would really hurt anyway? It is all about the regulator is it not?
It's not just the regulator, but also the entire return side of the fuel system. I've found that I can get away with using a high volume/pressure pump as long as I have at least a 5/16" return line with no restrictions. If it's a 1/4" return line (like on an early Mustang tank with an EFI sending unit), then the restriction is too much for a low pressure TBI fuel system, yet is fine with a higher pressure multiport system.