tmarino304

I bought the motor and put carb on and started the motor. It ran pretty good. Shut off and hooked up radiator hose and filled with water. Tried to start engine and it would barley turn over and wouldn't start. Confused, I pulled spark plug #1 and water came pouring out. So pulled the rest of the plugs and water was in #1,#2,#3,#5,#7. So I began to take intake manifold off and work my way to head gasket. When I found that there was no intake manifold gasket installed was pissed but relieved that that was a pretty easy fix. I installed a new gasket and put back together. Started motor with cooling system all hooked up but didn't add water. Took radiator cap off and engine idle increased. I put hand over radiator hole and engine slowed rpm and it was sucking extremely hard and increased when I increased rpm's. Like my engine was using cooling system as an air intake? So replaced head gasket, all other gaskets & it is still doing it. The motor has zero miles on it and was properly broke in. I'm so lost with idea's and have no idea what or why or how this is happening. Please please someone help????????