Sup y'all....

I need some help man.

3 out of 6 plugs are pretty dark(rich). No tan color in sight. The other three are tan/white. They seem ok. Is it possible for the ECM to read those three individual cylinder's firings respectively and correct the situation. Or can a tuner run it on WINaldl and the like and fix those respective firings?

Thanks for the help bro's...CHEVYTOWN

Howell TBI universal kit 560 cfm 87-91 unit on a 250 cid L6

 

Is it a dual plane intake? Maybe an injector is leaking and soaking those three cylinders. If it's a single plane, I would think it's a mechanical problem other than an injector. Either way I don't think you can have control of individual injectors with that system.

 

It's a new kit from Howell. So I'll probably guess and say that the prom has to be adjusted? And ya bro, the 3 are gunked. Can a fuel injection shop fix the problem or is it best to send it back to Howell. Only thing is, 2 weeks out of a ride is pretty tough here in Los Angeles.....

The manifold is a Clifford 4 barrel.

THANKS HOMETOWN, CHEVYTOWN