Ok this thread is about to take an unbelievable turn and I'm calling BS on my cousin because he's sayin another friend of his put an e-bay MBC on it and they had the screw lossened all the way out on it and they test drove it and his boost gauge was reading 30+ psi. I somehow don't believe his basically stock 02 would allow 30+ psi on the stock fuel system.... I'm at a loss because he swears it was reading that high and that launching and nailing the throttle was slamming the passengers into the seats like I said I call total BS on this but I'm curious to know what the stock fuel system will allow as far as boost goes.