Mach 1 with return fuel system?

[MAREOSPEEDWAGON]

I just swapped a mach 1 eninge into my 98 gt. The 98 has the return fuel system and the mach 1 does not, what an over sight. My question is does anyone know if it is as easy as switching my 98gt fuel rails onto the mach 1 intake? Is there more to it? Any aftermarket kits or should i just buy mach 1 fuel pump and eliminate the return line