Yea, so if you have an original PMD coil, then that can be the "Gold Reference" for confirming others.
I'm certain the coil wind direction and the magnet polarity both have to be correct.
Whereas i'm pretty sure if you only got a Chevy pickup (with long enough wires) then a flipped magnet might bring the Pulse polarity to match the Pontiac.
The best verification is the check the pulse direction on a O'scope. Your HEI 4-pin module will thank you later.
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