I have been recently doing some retuning on my car and I have noticed that the boost on my EVO9 won't really seem to stay stable. I am looking to get 24ish psi out of the stock turbo. I have the stock BPV. I am going to re boost leak test it because I just replaced my TB shaft seals which was my first problem. Does anyone recomend crushing the BPV for this level of boost? Is there a wastegate actuator that I can spin down to hold more boost? I thought I heard a little flutter from the wastegate. Could that be from a leaky MBC connection? Sorry for the long post but I'm just throwing out all options. Any ideas would help. Thanks.

Mods
Hallman MBC
stock turbo (EVO 9) and BPV
walbro
full exhaust
ams lower intercooler piping. Injen intake and upper IC piping.