DOH!!! My suggestion for jet extensions was made before I thought about the fact that2GC carbs don't have their jet passages drilled horizontally.
But here's some additional food for thought to maybe further muddy the waters:
I own a tub with an '85 mustang 5.0L GT V8 engine.
I built a tri-power intake for it with the end carbs dummies - it just runs off the center carb on a 2V intake. [At my age I need a functional tri-power on my street rod like I need another hole in my head]. With a 4.11 posi in this light car it launches hard enough to rip yer jaw off. Now here's the kicker - because the Ford distributor is in the front there wasn't enough room to mount three 2GCs so I mounted them BACKWARDS! with the fuel bowls facing the rear and it drives great. One would have thought that on hard launches the fuel slosh may have uncovered the jets but this has not been the case.I think the G forces on this setup on a hole shot are probably greater than side Gs on a truck turning so maybe other factors are at play - like fuel level adjustment or the manifolding itself, as carbking and others have stated.
