Took my mud truck to yhe thack this weekend and noticed a little smoke when I unloaded from trailer (smoke from left exhaust). Thought it was probably a valve and would check it later. Moved truck about 200 yds to the pits and it was smoking like a stove pipe--white smoke from both sides. Came home and pulled heads, drained oil and had water everywhere. Both heads checked out good. Could this have come from the intake gasket ? I did run it hot (210) last time out but has been driven on the street since w/o problems I thought.Please help. 400sbc, vortec heads, air gap intake