So I had it all apart to do the head gasket, and the one thing I forgot to do was mark the plugs and distributor so I knew where they went when I put it together. All I know is where cylinder 1 plug goes on the dist, anyway I tried that with other ones where I thought they went, and still no luck. Once or twice it ran, but very rough and very low rpm. Tried a few different patterns but not sure if i missed anything else,

Any helps greatly appriciated.. Also any pics of the firing pattern from distributor

 

there you go.

 

Maybe your valve timing is off??