Advice Needed - Can't Start Rebuilt 273

With all the issues you have had make sure your spark plugs are still good. I've had plugs get fouled from cranking and tweaking too much. At least clean them up real good. I sure hope your engine cranks pretty soon. I will be having a beer for you when it does. Way to stick with it too. I know it can get your brain into a big knot at times.