Thanks Mike. I have those on hand and believe I've tried them, I'll have to look back at my extensive list of jetting adjustments. My idle circuit seems to be happy with a 100 idle air and 65 idle fuel jets. I'm running into trouble with the transition from idle to main circuit. My wideband shows and I can feel the engine go way rich with a main stack of 180 air correction, F11 emulsion tube and 145 main jet. This is too the point of fouling the plugs until I get higher in the RPM range say about 4500RPM then it'll lean out to a desirable 12.5:1 AFR. I need to find an emulsion tube that isn't so aggressive in the progression...tips in a bit slower.