Originally Posted by mat35

hi all ive had my car set up and its running poor power,quick spec
stage 1 head
piper cam
vernier pulley
bayjoo chip
-31 actuator
front mount
mf2 5th injector
k&n
exhaust
standard t3
when it fisrt wen on it was 240 bhp @17psi but really lean,when he sorted the fueling out the power just kept coming down,the boost just drops straight off wont hold,it finished off at 170 bhp @17psi,
any answers would be much appreciate as its doing my head in.