Is there a fool proof method of installing the distributor so you don't fight with timing and backfiring on fire-up? I have tried multiple methods, and have yet to have an initial fire-up where I'm not dealing with back fires etc. The engined fired right up, but it's obvious the dizzy's in wrong. LOUD backfires out the exhaust, and header tubes on 1 & 3 are cool, while 2 & 4 are really hot. I put the distributor gear in so that when #1 is at TDC on the compression stroke, the rotor is pointing at #1 cylinder. What have I got wrong? (Small block, btw.)