How strange, all mine, top and bottom on these BS38s are all M5 x0.8
Interesting. All my parts lists show 70-79 BS38 have 4mm bowl screws.
Yours seem to have a history. Maybe some overtightening.
Might want to check the carb bodies for warpage at those threaded corners.
277 pamco with dynatek mini coils. I've found its best to have it in a particular place in the firing cycle, you get a feel for it after a few kick backs but when you find it I can gently push down prob past 50% of the kick distance and then it's just a little kick to the bottom and it fires surprisingly easy
I've been wondering about this. Same story with my old panhead. Would get better kickstart results on one cylinder versus the other. Had to feel for the long vs short kick throw to know which one to stomp on.
Imagine a viewport in the topside of the left points cover, that would let you see a painted edgemark on the pamco rotor, telling you it's a go to kick...