I have a 5.0 roller motor. I have been running a carburetor with stock 302 distributor. I have now installed a new 5.0 efi from a 1986-1993 with painless wiring harness. Everything hooked up no problem. My distributor has thick film ignition that plugs in ti the painless wiring still no problem. But the distributor will not engage the the cam and oil pump. Dose any body know of a different distributor i should use or what else i need to change. Thanks Bob