The gas is brand new (running it out of a 5 gal tank)... maybe it is water in the cylinders? I did put Marvel Mystery Oil in, so it might be that burning off too. I don't know if I can trust my gauge cluster so I have an order in for aftermarket oil and temp gauges, so once those come in I'll hook them up and try running the engine for awhile. When I do that I'll post up an update.

Thanks for the help!


Neil
1955 Chevy 3200