I too think it is in the firing order/position. Here's what I've done.

With valve cover off, and #1 plug out, I've cranked the engine till thumb was blown off. Marked position of rotor at 4. Both valves are closed. I do know that the pointer lines up on number 6 also. I've set the plug rotation to that as well and get the two backfires at that spot.

Atomarc, are you referring to the band around the distributor to loosen, or the bolt adjusting the octane selector? Bare with me, I'm new to this yet!

Thanks, I'll double check these again.

Kyle


1941 G506
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1946 3800
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1946 3600
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1924 Ford Model T Fordor