I have p&P heads, a FMIC, and a custom Powerpipe, and I am pushing 13lbs with a 3.12...you will probably want to go the next size up...since I am losing boost with my heads...
i dunno... its got an appt. with jlp on may 12... i know thats a long time away so i guess i cant help you till then. i appoligize for any incoviences this has caused you