My 340 in my 66 developed issues :-(

sireland67 said
On your coil, it should say on the box either to for use with external or internal resistance.

It says to run with the ballast. I'm going to run it this way and later when things free up a bit maybe I'll revisit this. Right now every time I turn around I'm spending money.. But it is cheap enough to do and I will keep it on the back burner..