Misfire at cruise, popping/afterfire at 3000RPM

its taken many turns but all for good reasons.
Go back to the very first post. The issue was described as misfires at moderate to full throttle in the range of 2800 rpm up while driving.

The timing curve was never fully mapped out as far as I can recall. I'm not convinced this is the cause as the description doesnt match, but is still something critical to do early on. IMO the mechanical timing ought to be ballpark correct before trying to hunt down issue tied to moderate to full throttle.

Agreed - many twists. That's why I asked a few questions since some stuff has seemed to change as OP has learned and found more. Sometimes the original post becomes a little less relevant over time - that's the only reason I'm asking redundant questions.

Also agree about the timing. Poor ignition seems to cause 90% of 'carb' problems.