Been doing this for a while, but just decided to ask about it. If I easily roll into boost, the engine revs smoothly, despite not feeling as strong as I think it should under boost, but if I punch the trottle, and the boost guage sweeps from vacume into boost, the car jerks a couple times like it's hesitating, then continues on, but once again not feeling as strong as it should for running at 10+lbs of boost. It does this in every gear and at any speed. The exhaust is stock manifolds with Wynn's downpipes. No cats, brand new O2's, glasspack for resonator, then stock pipes to the 2"in/out Dual spintech mufflers in stock location. Onlything on top of motor that has been changed is the Ebay special Focus intake tube and MAF reloacted to right in front of TB(helps with clearane for the intake tube) Have Taylor 8mm Spiro Pro wires, and NGK Iridium plugs with about 10K miles on them. I run the crappy Cali 91 octane gas. Have the EGR unhooked. Has had head gaskets replaced, and new solid rubber motor mounts installed in last two years. Radiator leaks and is getting replaced as soon as the new radiator comes in.(plastic top on old radiator is cracked) I've asked for help in the SoCal area before for anyone to meet up and tell me what they think about the car. Only a couple have replied and they couldn't drive a manual tranny to take it for a test drive. The car has not performed like it should since I've owned it. At least not in my opinion. When I first bouht it, I contributed it to the bad motor mounts, and possbly blown head gskets. Since i have replaced both, it only slightly got better.