I'm trying to help my buddy figure out his car. He has a 1989 shelby Daytona. It has a 2.2l enforcer II long block with the stage II head, 475 cam, 53 lb injectors, walbro 255 pump. The turbo is a custom built one from fwd motion, pretty sure it is the enforcer III turbo. Foreward motion did the computer based on his specs. Inter cooler 24x8x3.5, HkS blow off valve, fuel pressure regulator, 3 bar maps sensor, 3 inch exhaust (with cat for now and muffler) 52mm throttle body, stock intake manifold and exhaust manifold, stock fuel rail. Is hitting 16 psi max, then the bov opens up (from what he tells me). It's slow as balls until it hits 16 psi at about 3500 rpm wakes up a little, and then it loses pressure down to like 12 psi. The thing fees like a high 14 second car.

i am doing this as a favor for him, and I know very little about turbo cars. He is pretty discouraged as you can see he has a lot of work in this car for it to be so slow.

any advice would be greatly appreciated guys.