I just put the %10 od pulley on this morning and it ran fine for a few hours. Now I start to drive around noon and whenever I go WOT the car will fall flat on its face. It will even do it under 1/2 between 1in vac and 2psi, it just studders and bogs then when I give it more gas, the boost will spike like crazy. Like from 7or 8 psi straight to 15psi without any extra pedal effort. I replaced the plugs and wires before finding out that the 3.8 doesnt get along with bosch very well. I dont think the fuel fiter has been changed at all, but a lack of fuel or spark doesnt make sense of the boost spike.