All that aside that's a really big carb. A 450 CFM is probably more of what you need. I'm only running a 390 though I feel like I'm on the light side.
I knew the carb wasn't purchased setup as stock but I also knew the stock setup wasn't going to work for a 250 with, or without a turbo. It's a big carb but the mechanical secondaries will allow decent control over my turbo power curve. The way I look at it, it's like having two 2 barrel 300cfm carbs... One for normal driving and the other to kick in when I mash the pedal, aka "Turbo Time".
