unhook/plug the vac adv hose and see if it pings @ 16/32 or 18/34. If it stop pinging I'd go back to 18/34 (assuming the eng/cam likes 18 inital) and go more CCW on the vac can and probably need a can w a smaller #. Holler back. Also what rpm is the mech all in at?

live every 24 hour block of time like it's your last day on earth