New bearings, difficult to rotate the crankshaft.

The rods have a bit of side clearance. You can simply try to jiggle each rod when they are torqued to see which one will not budge, then take that one apart and guage it. I think Sheppards book tells you to either wipe bearings with scotchbrite or scrape them with a knife to clearance them, perhaps that is the cam bearing? Better safe than sorry. Did you use assembly lube? A dry bearing is a cranky bearing...Also make sure you assembles the bearing in the part correctly. If you torqued down a bearing that is in backwards, the tang will have no where to go and compress against the crank, locking that one up.