Ok so I just put in a bbk o/r h pipe and some ported e7 heads that have multi angle valve jobs and my car barely feels like it picked up any power I mean the stock heads had 186k on them and these are fresh only other mods I have are k&n filter and flowmaster mufflers its also an auto I do also have an explorer intake with the 65mm t/b I can drop in could my stock intake be holding me back