I have had my exhuast manifold machined twice in the last 9 months because the shop said it was off-center. After my most recent visit to the shop, I noticed that my boost guage will go up to 8-9 psi, but the power is not there. It takes longer for me to get up to speed than before. If you can help me with this problem it would be much appreciated! I am also looking for a nice set of adjustable coilovers for my Eagle Talon or should I go with my lower springs that came with the car?