when laying into the throttle at lower RPM's, like under 3500 i guess, it detonates a little, but i dont hear it if i lay into it when the rpm is higher..Thoughts?
Yes IMO you do have too much timing below 3500. Detonation slows you down; and breaks parts; get rid of it. Better to be too slow than too fast.
The thing is; with just 9.4 Scr and that big cam, your cylinder pressure should be so low, that it should run on any crappy gas, with lots of timing, especially with a 3000stall.. The fact that it doesn't, leads me to suspect a chamber problem.
I assume you have tried best non-alcoholized gas?
