The biggest part of this motor swap from a 3.1L to a 350ci is the wire harness and computer change, There is a 305ci VIN E with TPI, 305ci VIN F with MFI, and 350ci (my favorite) VIN 8 with MFI, explain difference in harness and what harness can be used with the 350ci and which one is best, and explain the diffenece between TPI and MFI as far as what I need for the 350ci. How can one tell if I'm just standing there in the junk yard with no VIN numbers. THANKS