I got a 1989 Chevrolet Beretta. I recently went and did a engine swap to a bigger motor (3400). I got it from a 99 Grand Am. The problem I'm having is that its not getting ANY spark or fuel. The starter works fine and cranks over all day but its not gonna start. The thing is though, every once and a while, the fuel pump will kick and send a little gas to the motor but not enough to create pressure. I think its the computer, but I've tried 3 and still nothing.

All grounds are clean and tight and its all most done just it wont run. I miss driving it... Reps for help.