Quote:
Originally Posted by Boog
I think I would measure the voltage to the distributor.
You may or may not know HEI needs a solid 12 volts to run best. If you used the original distributor power wire on the truck it won't do. It is a resistor wire dropping the volts down to 8 or 9 or so for the old points type ignition.
If supply voltage is good I'd switch back to the HEI distributor and give it a try. Just because the MSD unit was new doesn't mean it can't be bad.
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I did measure the voltage. Here is where it's interesting. The truck is a complete frame off, all new wire harness, but still I tested the voltage and it was great. I talked with MSD and they said a minimum of 10 volts at both main power and switched which I have 12v at both, of course the one only when the key is on.
So, now I'm too the ignition. I disconnected the entire MSD, wires and all and now going to try that. I also have another set of good wires I'll try also.
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