Jeff, To do the HEI conversion, all you keep is the Mopar distributor. Unplug and remove the ballast resister, and fashion a jumper wire to connect the two terminals in the harness that used to go to the ballast resister. You don't use the ballast resister because the HEI module wants full voltage at all times. By bypassing the ballast resister, you are giving it full power while cranking and running. Remove Mopar orange box--don't need that either. You must replace the coil with one having very low primary ohms. I use the chrome Accel 8145C. Sean Jeff Adams wrote: > I > assumed it was the orange box (whole ignition was new 2 years ago) I did > the GM HEI conversion, still no spark, so I thought maybe it was the > distributor. The whole system was from Jegs as a set, distributor, > harness, resistor, and orange box, probably Proform. I swapped in an old > distributor, still no spark. I made sure the HEI was grounded. ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.