Cant build boost

[Red 2g GSX]

Alright i went to the track last night and the car was running good. On the way home I went to to a pull and it wouldnt build more than 1-2 pounds. My boost controler is set to 15. My first though was that the w/g arm came loose or something...but its still on there. The car idles and runs fine other than it not building boost. Its almost like there is something caught in the i/c pipe which is almost impossible because i have had a filter on the car at the whole time. I can also hear the turbo spool up when i floor it so i guess its not blown but i dont know im about to go see what i can find..

Any help would be a great help

thanks vic

 

[johnk]

See if your not getting any boost leaks especially on the hose for your guage.