Thanks for post, I can't use a A/F meter, I'll try some of your thoughts in morning, will report back.
100% what it was, with all 3 having idle circuits it was dumping to much fuel at idle, closed the secondary A/F screws and seems to run (idle) great, Thanks so much.
OK guy's think I have it fixed, was a little high on fuel pressure, and closed the idle circuit on the secondary's-was dumping to much fuel in at idle with all 3 idle circuits, seems to be running real good now, THANKS for all responses...
Guy's I want to say George Rooks at Summit was very helpful, and I needed it, mostly since I've gotten NO response from E-Mail to England or Max here on site-been 3 day's with NO response, I can't let myself think that's good service, but what the heck these carbs are only $1800. with manifold, fuel rail, linkage $2600.
What are the O2 sensors for then? Going by what you're reporting, it sounds like you're close. Have you balanced the three carbs with a Uni-Syn? This is absolutely necessary to get those carbs to all pull the same vacuum. Also, I don't think you want to close the secondary carb's a/f screws. Setup the center (primary) carb and then adjust the other two to match, sync, and go from there. You're more than likely to find that the idle screws on the secondaries need to be opened up a touch while the primary needs to closed slightly to get them all to sync. Those secondaries need the a/f screws to be adjusted as such so that they pull in a tiny bit of fuel as the butterflies are opened, otherwise, they're just a vacuum leak that the primary carb (and you) will fight to get tuned properly.
Uni Syn or equivalent definitely needed and required when setting 2 or more carburetors, My self have 4 & all been calibrated so they read the same, makes adjustment easier
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