Rebuilt 318 Refuses to Start

You need to be on the compression stroke. Pull #1 plug and rotate it till compression pushes air out. Turn to TDC and line up the rotor with the #1 tower on the distributor cap. Lightly snug the distributor clamp down. Once it starts, you will have to adjust the timing. Never pour gas to start an engine. If you build an engine right it should start within a couple turns.