My 340 in my 66 developed issues :-(

I think you might be right.........I haven't run one for over a decade;probably switched in 2002, so maybe as long ago as 14 years.....

Oh yeah I remember now; I installed the dual ballast harness cuz if I puked an Orange box, I could still run any 5-pinner out there in an emergency, to get me home from 500 miles away.

OP, sorry :(