Hmm, this thread is back, eh? May as well update. As it turned out, the problem was that my idle jets were just way too big. I'm using 50F9s now, and it's nearly perfect. Go figure.
Took a bit of a detour to play with superchargers and 4-barrels for a while, but I'm back on track to finally get the turbo installed, probably over the winter.
Robert: I may try some smaller main venturis, but not because of drivability problems (because I don't really have any anymore). I'd just like some extra low-end. Under 4K there's just not that much there. The turbo should help with that, though.
