Quote:
I had thought about installing it advanced and regret not doing so at this point. The cam was degreed.


If the cam was installed as per the cam card in the link you posted, then it's installed 4deg advanced.
The advance is ground into the cam.

Advancing it "more" isn't going to cure your problem.

68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads