So here's what I'm dealing with...pertronix ignition...flamethrower coil 0.6 ohm..and 4 post starter soliniod.. I have white wire hooked to positive coil and dizzy pos...and I terminal pos on coil...brown and coil black to negative...is this correct
I didn't bother with the I terminal since on Pertronix there's no need for a ballast wire and my ignition switch energizes "RUN" during start (not to mention my starter circuit is completely different from stock). If your ignition switch doesn't energize "RUN" in "START", then you will need the I terminal wire to power the ignition during start.
If the white wire is a ballast wire, then snip it and re-source from the choke heater white wire directly (my ballast wire was light tan). But otherwise, yes, white and pertronix red to the + terminal on the coil (and the I terminal wire if needing such), pertronix black and tachometer/shifter kill switch wire to - terminal on the coil. Ignitor module grounds from the distributor body.
I assume you checked your base timing at idle (10 degrees BTDC). I had weird issues because my timing was way off after swapping the module.
Not specific to Mercruiser, but if the crank pulley has a harmonic balancer, the rubber can go bad and cause the timing marks to no longer be accurate (would need to see if actual TDC matches timing mark TDC).
Finally, it's possible the weights in the distributor are seized/tight and aren't advancing timing when revving up (as while marine distributors don't have a vacuum advance, they do have RPM advance).
