have you tried porting the turbo at all? or the o2 housing?

 

You could aways run an 02 dump, thats a cheap way to eliminate creep.

 

an o2 dump??? what is that

 

An o2 dump is a pipe that just dumps the air comming from the wastegate to the air instead of back into the exhaust.

Notice a normal o2 housing looks like this where the wastegate is routed back to the exhaust downpipe


and here is a dump pipe