Hey all, looking for some feedback on an issue with my carb. Its' a 950cfm 4150hp (mechanical secondaries). Its been pretty rich for a while (even at idle you could tell), and always had a stumble when you matted it in lower rpms (2000-2500). You can tell its when the secondaries hit, there's a brief stumble and then its fine, pulls like mad. If you roll onto it, no stumble. I hooked up a vacuum gauge and started tweaking the 4 corner idle screws, which made a noticeable improvement. The idle smoothed some (and rose, but I turned it back down to ~800), and I gained about 4.5" of vacuum at idle. Took it for a test run, its not dumping fumes out the back like it was under WOT, but it still has that d#mn hesitation!! So I aske, what should I be investigating next? To be clear, I dont know what jets are in it, and have a feeling thats going to need to be addressed. Could that be an issue? Something else to check?