>I had to countersunk the 4 Allen bolts behind the cam gear<
Yeah I thought that might be the problem so I checked for clearance and it seemed OK. I did see some rubbing on the plate, like the cam gear was pinching. I backed off the cambolt a little and it freed up. Fingers crossed on the new bolt/washer. But defintiely will recheck the 4 bolts afterwards.
One other thing. The stock 392 has a 'gutter' of sorts that directs oil dripping from the cam bearing onto the crank gear. It attaches on the bottom two cam retainer bolts. There's no room for it with the gearset so I'm wondering if it'll be lubed enough or is there some other way of directing the oil onto the gears?