I should also say, when my buddy put the msd in his cuda a couple years ago it was fine. His problem suddenly started one day and he tried everything, checked everything, bypassed ammeter guage, tried three alternators, two voltage regulators, swapped coils, pulled every fuse one by one. He thecked all grounds, he went crazy trying to figure it out. THEN,he put all original parts back on, (alt, volt reg,coil) and ditched msd and went with new orange box and all is well. Sounds crazy?