[Argess]

Thank-you. I'll try your suggestions short of the wideband monitor as I don't ahve one.

These carbs are a bit different in that they have an externally mounted primary float bowl vent that is operated via a lever from the throttle bellcrank. I tired to find a net pic and provide the link, but no luck.

As the carbs are mounted backwards in a 2x4 situation, the primary bowls face the firewall, so these vents are on the rear floatbowls. I notice that there are signs of evaporated fuel around these vents. So if that's due to fuel slosh under hard acceleration, where does the extra fuel go from the front (secondary) float bowls? Out the float vent and into the secondary venturis?

I see Holley has some baffles, screens, whistles etc to help fix float bowl flooding, but they are mostly designed to work with the carb facing forward, not backwards like in the Ford 2x4 systems.

Anyway, no tinkering yet today. Must try a few things and see how many facts I can get to help figure this thing out. I'll try re-checking dist for sticking, richening the idle, waiting to see if the low idle fixes itself eventually, try lowering the float levels a hair, and whatever else I can think of.

Thank-you.