So Im doing a carb conversion on my 87 5.0 liter after drivability issues got so bad I couldnt drive it anymore and ran out of ideas trying to get it to run right. So it came to the point i needed to swap to a carb. Ive been reffering to fletchs carb conversion article through the whole process and it has been great. But once i got it all installed and ready to wire i ran into some issues. there wiring colors on my pigtails do not match the wiring colors he has listed. I think this may be because i have an 87 and he was converting a newer mass air car. So I checked my chiktons and could not figure anything out in there. all i need to wire is the fuel pump relay, guages, and ignition turn on signal. Is there anyway i can test the wires to find out which is which?i was thinking I could make a jumper and start adding 12v from the battery and watch the guages to see which pins run to these, woudl that hurt anything? Im pretty much lost and would appreciate any help I could get. Thanks in advance!