I have an fc and recently did a 13b rew swap on it and when I try to start it, all I get is a loud backfire, it does putter for a second but then floods out again, I had a friend of mine look over it and he said it was an ignition problem, so I don't know where to go from here, to me it should have started by now, everything seems to be perfect, but I could be wrong, if anybody could spare some time to maybe take a look, I'd be greatly appreciated, cuz I'm stuck and don't want to give up

What ECU are you using? The would be a big help to help diagnose the issue.

Fuel system? Did you swap the REW ignition system or keep the FC coils and ignitor?

Are the NE and GE eccentric signals reversed?

I got it figured out it starts and runs, lol now I just need someone to come over to my house and tune it with a power fc, just a really rich tune so I can just drive it thanks for your guys help, it made me motivated to double check my coil wiring like 30 times lol, but yeah all I need is someone to tune it

What was the problem?