Finally out of paint jail!
1 step forward, 2 steps back, looks like my 273 is a hybrid, burns both gas and coolant! Hopefully just a head gasket problem, engine was rebuilt by PO. It was broke in and was running fine, then started blowing a little white smoke on the passenger side, then next time I started it a little more, then last night I swapped out to a 600cfm holley and it was smoke alot more, it was colder last night, but never went away, car never overheated. So pulled plugs on the passenger side and bingo! It the orig engine so hopefully its nothing like a cracked block. There is a little water in the oil, but not a ton, small spots of froth here and there when I pulled the intake. In the pic, the piston is at TDC, i did take the shop vac and vacuumed it out.