yeah its easy to extract power out of a turbo car. Just replacing all th ewimpy shit on it like I/C, I/C pipes, 02 extension, downpipe, 2.5 exhaust and a boost controller should help it out alot. But the main problem with the car is the fuel delivery. 1-5k is really really rich well below 10:0 to 1 so if the mixture is leaned out with all those parts listed it should easily make 200-220whp I think.