Sorry Eric, I still haven't got with in-motion. I have off work monday so I will call for sure. I would leave it as is if your gonna put a pulley on it, unless you have some datalogging tools. I have the original Needswings manifold tune on there. The AF ratio with stacked Code 3 mid pulley was 11.5-12.5. Your safest bet would be to put a 178 on there, but the 185 will make more power as long as the intake temps don't get too hot. I was making 19psi with the stacked setup, so if they still make the 181 that might be a better option then going 185, since we know the tune will support it for sure.

Cruzin, the car felt pretty good with the stock pullies. I'd estimate 12.5-12.6@ 109-110(full street trim), considering It lost about 50hp once the aftermarket pullies were removed and I ran the 12.0@115 prior.