I am switching from a 86 GLHS computer over to a recalibrate 87 CSX computer along with a 3 bar map sensor. I recieved a MSD map from FWD performance. What do I use to plug into the 3 bar map sensor? I know stupid question, but I am not sure. From the plug I would then run the wires into the CSX computer according to the instructions. Thanks guys, chris