I'm dealing with a bad off-idle stumble I can't get rid of. Anybody have a similar condition? Happens under load or no load, just sitting. This is when it is still not up to operating temp. After 170 degrees or so it settles but I want this thing to be responsive even when it's still warming up.....kind a like an EFI system. lol. I've tried increasing the Accel Pump settings but can't really tell if it makes any difference. I've also tried all 4 cam settings for giggles, but no noticeable difference. From about 1000RPM to 2000RPM it feels like it's running on 4 cylinders. AFRs look good, so I don't see a lean or rich condition. My timing is what it has always been and I even tried advancing and retarding the timing to see if it made any difference. Zilch.