Having your total 36 degrees in by 2200 rpm could be a bit too much advance at that engine speed, OK for a faster rpm. Could be but I'm no expert.
Rohrt, So you had them grind a cam with the same lobe profile, lift, duration etc but widened the lobs out? Do you still have it installed at 108 degrees? That would have the exhaust peak earlier than the 112 degree Stump Puller. You'ed have less overlap and must give you peak power at a higher rpm. Or did you install it at 110 to keep the centerlines as equally spaced from TDC?