340 with edelbrock heads overheating

from examining the pistons, the valves didnt hit the pistons. if such was the case, it would have been on the other side of the piston, towards the inside of the engine. so, if i am right, the piston hit the head somewhere else in the chamber. have your heads inspected by a pro. also, bring each piston down one at a time and have a good look at the cylinders. make sure you dont open the engine twice. by the way, you cannot put the head gasket up-side down on a small-block mopar.