Too much timing???

That's where it stops. It used to be all in by 2500 and stay there. Now at 2500 its right where it should be but as I get to 3000 it starts to move up and stops moving at 3500. I don't have an extra distributor around so was trying to narrow it down before I went out and bought one.

I would look at what you have before buying something new. That particular. Advance mech is pretty simple.