I am back again, and stuck. I have replaced old harness with correct evans update. 1968 300 with 1970 solid state v.r, electronic ign. Replaced starter relay, igniton kit came with distributor, module, 12v coil and resistor. Replaced plugs and wires. Has new ign switch and updated alt. I believe i have everything correct, verified #1 on cap, tdc on crank, firing order right. Kept turning over, tried several minutes, has fuel. Twice when I let off the key it acted like it wanted to start, on the third time it BACK FIRED!, ran the doves out of the woods. To chicken to try again yet. Can someone tell me what voltage I should have, where with key off, in the on position and in the start position, what should i have at resistor and the coil terminals. I am not good at all with wiring aspects, this is killing me. the motor turns over perfect, no wires have smoked or melted. Please any help.