Re: K&N Electronic Carb Injection
It can only add fuel right? It can't add air. So it can only help a lean condition. If your car runs like crap because it is pig rich, no way that can help. Impossible, unless it has a built in air bleed, to lean it out then adds fuel back in, but that would totally ruin idle. I wonder if the instructions say something like re-jetting or lowering floats to lean out the carb first.
EDIT, from their site:
"Will the ECI only help if the carburetor is running too lean?
Yes. The ECI is designed to only help when the engine is lean—you set the parameters of the AFR, and any time that the air/fuel ratio goes above that reading, the ECI then injects fuel. If the AFR is constantly below that reading, the injector will not fire."
1967 El Camino Malibu - Deepwater Blue
ZZ4 350, FiTech 600 complete!,Roadmaster tank, 700R4, Underdash A/C in progress, JGC Steering, 1990s truck serpentine.