Hi everybody! I finally felt well enough to play with the boat and noticed one of my engines has a wobble in the crankshaft pulley. I also seem to detect belt squeal. The wobble is most noticeable at idle and hard to detect over say 1K rpm. Bolts seem tight. Engine is SBC 350 is is only a couple of seasons old. Maybe 40 hrs total on it. Pulley was a leftover from the rebuild and the Harmonic Balancer was new. I bought 2 remaned short blocks and swapped tin, pulley etc as needed. Any suggestions?