Some of you helped me out alot a couple of weeks ago after my car wasn't running. Thanks to everyone who gave me advice One of my problems was that Trick Flow said i couldn't run Proform roller rockers, they didn't promote proper valvetrain geometry. The last thing that was wrong was stupid, there is a vacuum port on the under side of the explorer intake that sat on top of my taller valve covers so the upper intake never sealed, there was a gap between the upper and the lower. Thanks again to everyone. Nick