That's what I had a chrome round Accell coil with chrome box. Running the .25 resistor that came with the MP kit. coil got so hot it would burn you. quit on me. cooled down would start again. So I put on the MSD 8207 coil. it got so hot just running it to test in driveway it swelled up and split. put on second 8207 with the MSD .80 resistor. running in driveway again it got up to 220 degrees. ( reading with heat gun) afraid to drive it any where now. it might bust too. thinking about putting in a whole MSD system. only have 7.5 volts with fans on at coil. Talked to MSD they said the voltage is on target.