Slant won't start!!?!!?!?

Thanks for your help everyone. I got around to replacing the head gasket and put it all back together. So far it sounds the same when trying to start it, engine turns and no sound of cylinders firing. I used a piston stop to determine TDC and my finger over the plug hole to find the compression stroke. I will try to get compression readings later today for comparison.

Anyone think it might be a worn or jumped timing chain? I had little power before all this along with stalling at idle. Also, I could only rev the engine to 3k. Could I check valve timing without pulling the timing cover? When checking for the compression stroke I can feel compression quite a bit before TDC.

Thanks again!