well yesterday I tried putting a grainger valve on my car,to make a long story short it ended up spiking like 25 lbs of boost on the stock turbo. seemed like the valve wasn't doing anything for my car so I took it off now my car runs like SHIT! from 1000-3000rpm when I rev, the car stutters. then when I drive the whole car shakes terribly. it seems like the car isn't getting enough fuel for it to run WOT...I dont know what the deal is...anyone?