96 Ultra won't start

[96 ULtra]

Replaced cams, push rods and lifters added Cobra fuel processor rode for about 30 miles ,sputtered and quit, sounded like it was running on one cylinder and then wouldn't start but it cranked over great. Replaced CKP sensor and coil , plug wires. Now will tun over and it back fires but will not start. 

[fbn ent]

I am not familiar with the Cobra. That being said, I'd go back to the stock box and try it.

[Pirsch Fire Wagon]

Remove the Cobra. I've seen a few of those on bikes and people seem to really like them. I have also heard people don't "ensure" the plugs are all the way seated. I guess because they're difficult to get at without pulling the tank. Just lifting it still makes it difficult.

If she starts, reconnect the cobra but ensure plugs are seated all the way. Use a little dielectric grease. Zip-Tie the leads somewhere where they're safe.

If she doesn't, check those plug wires AND plugs. You're using OEM?

If not, post back and we'll go from there.