So after really spending some time comparing the pics posted of a stock intake and the massaged one, was there much benefit to be had carving up the plenum? By the way, you guys are turning me to my stock intake. Guess the performer will be for sale soon. I'm going to throw that mopar crank with the 340 journals and 360 stroke in it, keep my XE268 cam, and TQ. Only question left is which heads? My J's or my magnums. That will depend on pistons and condition of both sets of heads. For obvious reasons I am hoping the J's are good, and I can find a piston to work. Thanks for the intake help.