Well I am nearing the finishing point to my motor and I think I might have gotten a lil impatient. I slapped the head on the block, set the timing and gave her a quick spin (by hand) and all of a sudden. Clunk. I have a Skunk2 cam gear and it was set to Z6 timing >(. So I quickly pull the head to check the valves and pistons. There has a small mark on 2 of the pistons but very very light. All looked well so I just spun the cam to go through the motions and all seemed to be opening and closing smoothly but then I spun it counterclockwise it would make it 90 degrees before tdc and........ clunk. Then clockwise and no binding, counterclockwise and 90 before tdc...... clunk. I pulled all the valve train to see if I could see anything but no go. I can take a quick vid tomorrow if it will help. Also my set up:
D16Y8 head with Y7 valve train, Delta 272 regrind, Supertech spring.
D16A6 with PM3 pistons, Cometics .066 head gasket (11.3-1).

 

I just don't understand why it spins fine clockwise but binds when I turn it counterclockwise?