hi, my car started as an 87 5.0 automatic. i put in a 86 5.0 h.o., t5, pedals, a9l computer, MAF harness and meter, under dash harness, and t5 wiring harness all out of an 89 gt. Before when i just had in the new engine and tranny and no wiring/computer changes the fuel pump would prime, i could...