Let me first remind yall that the smoke had subsided for a while, two nights in a row. My oil pan gasket was leaking (a new one, we just didn't put it on right) and so i changed it out on Friday night. As you all know you must first drain the oil through the pan plug. The oil that came out was solid black and there was only about half a quart total although that oil only had 40 miles on it! So, i filled it up with 5 fresh quarts of oil after the gasket change (it's on right this time) and turned him over. Ran fine, choked and gave gas to get running good (32 degrees right now) and after running for about a minute, little puffs of smoke started coming out the tail pipe. I gave it gas and it started the raging smokescreen i had the first time i ran it! I don't know where i went wrong! My compression test (90-90-100-110-100-100) means my rings are good (i think) and i don't know what to do now. All it took was an oil change and it started again, I am in a raging state of depression.