The previous owner didn't know the cam specs and I haven't tore it down to get a casting number. I do know that's it a long duration cam by the lopey idle and low vac at idle.
When I first checked the timing, it seemed to be advanced a lot. I couldn't verify without the timing tape or advanced light. Now it seems like the timing was correct being advanced so far.
I did some seat testing yesterday. I tested at 12, 14, 16 18 & 20 degrees base timing. The power seemed to get better with more advance. 20 is the most I can get out of it right now, the vac advance is against the intake so I'll have to move it a few teeth.
Still no change from the idle mixture screws. It has a flat spot where it stumbles at part throttle, low rpm. It will continue to due this until I give it a little more gas. It now has a hesitation when you mash it. My plugs may be fouling.
Thanks for the help.