[bobcowan]

Your current pumps puts out 75 gph at 45psi. Probably a bit more at 7psi.

The fuel pump does not control the fuel pressure - the fuel pressure regulator does. You can use the pump you have now, just replace the regulater with a return style low pressure part, and all will be well.

You'll still have a return style fuel system. IMO, that's a good thing.