I have a 91 pickup I swapped the 2.3 with a 2.6 and I dropped the fuel injection andwent withthe 2.3 carb. But it's only running on the 2 front cylinders I can't seem to find out whats wrong with it. It pops back through the carb and it's really weak. I need some help on this one. so thanks in advance

sounds like valve timming. might want to check out your timming belt setup . did you get the 2.6 from a reliable source?

Thanks butI got it. It was really simple and dumb at the same time I had the spark plug wires crossed. Thanks for the help