i recently swapped a b18a1 out of a 91 integra into my 91 si, i got everything hooked up besides the exhaust(open headers) and its been shooting flames out of the 4th cylinder and smoke out of the other three. its frustrating and alil scary ha. anyone know the cause/causes of this. ive been restoring the car and everything up to this point has been a breeze. thanks for all the help:scared

 

have you checked your timing maybe?

 

ill check it tmrw was good before i started it and it was tight so i doubt belt slipped