HHHHHHeeeeeeeeellllllllpppppppp. I have been fighting a one problem after another on wife's car. Its just a sbc 383. I am not getting spark. I have replaced the coil, MSD Blaster, and nothing. Here is what I have done. I checked the coil wire that goes to dist. and get no spark. I brought the new coil to shop and had it checked, good. I measured the voltage to the coil + side to ground and get 12.6v with key on, not cranking. I checked the voltage to center conductor to ground (coil wire) and get 12.6v, not cranking. I do get 12.6v on the negative side of coil to ground with key on, not cranking. I thought that was wrong an maybe it was a direct short. Pulled wires off negative side of coil and don't get any voltage from wires with key on, no short. I have been trying to work towards the distributor thinking it might be the issue. Am I wrong in thinking that there should be no voltage to negative side of coil with key on? Also get no pulse when measuring the voltage between the + and - side of coil, which I thought I should get. Help me in what I'm doing wrong, would appreciate.