Update: so I swapped in a stock rail, fpr, and injectors. In order for me to crank it up I need to either spray some starting fluid or stuff a rag with gas on it. Once craked up it will stay on but the backfiring still continues if I gas it a little. If I give it too much gas it will backfire and die out unless I let go of the gas pedal. My next move will be a distributor and see if it helps out. Uggghhh