71 Dodge Dart Swinger in England

Did you try swapping the W and G leads from the dizzy to the GM module. Same premise as doing that w the mopar ICM.

Stock hydraulic lifters and valvetrain on a 318-360 are non adjustable. Waste of time checking that if your getting good cylinder pressure in all 8, unless you want to check for a bent one. I recommend reusable neoprene valve cover gaskets. Yes your firing order is correct. Clockwise 1 8 4 3 6 5 7 2. With HEI you can increase the gap from .035" to .040"