Mbc Problems

[1slowdsm]

Now that you've got that problem taken care of...it's my turn...haha. Since this is already a thread for what I had to ask.

I'm still having spiking problems. I bought Mike's (from QPR) MBC and he said that it takes some tuning to get it fully adjusted. But I cant think of anything else to try to make it work right. There is only two screws to play around with, so there isnt many ways I can adjust it. I've pre-setted it and it runs like 14 lbs with spikes up to 17. I adjusted it a little and that didnt help the boost spike. So is there anything else I could try to fix, so it doesnt spike. I have the TurboXS HPBC. I've been having this problem for so long, I forgot how nice it is to have the boost just jump up to the setting and stay there...I miss those days...haha.

Just incase, this is what I have done:
2.5" dp+testpipe...2.25" testpipe back exh...2.5" exh....air filter...MCB...boost+air/fuel gauge. I also have a whole in my dp if that might be the problem?