The cam should be snug, but not tight. I've been told that if you can't turn the cam by hand using the gear, it's too tight. Two possibilities, either one or more of the bearings is too tight, or they are misaligned. First check is with mikes and snap gauges in hopes that you find a bearing that's too small. Whatever you find, it's going to mean a trip back to the machine shop, I guessing that you don't have the boring tools needed.


Fred
52 3600
69 C-10