It may be wrong to assume that you have oil in, and an oil filter on the motor? Spin the oil pump to prime the oil system.

I'd bring #1 up on compression and make sure it didn't jump the timing chain.
Pull the plugs ans put a little oil into each cylinder, then spin the motor over with the starter. Bring # 1 back up on compression, install new plugs, and be sure the ignition wires are connected to the proper cylinders, in the proper rotation, and in the proper position. Check for spark. If you have compression, spark at the right place at the right time, all you should need is fuel, use gas. Fill the carb float bowl and try to start it. Gene