on an 04 4.8...the titanium laced heads are goin on right now along with the new cam and other really light & stiff stuff...got to lookin at the intake and noticed two pronounced ridges, both above & below the blade on the outside part of the mouth and tapering off on the inside of the blade...does anyone have experience with this throttle body...seems like those ridges could go away and air would have less turbulence entering...why are they there...what do they do...what happens if theyre gone...how big is that throttle body anyway...its off & on the bench, now's the time...i'm confident in 350rwhp with the heads, titanium, & cam stuff...is there any in that throttle body...thanks...still figurin on the BBC but foolin with this for fun...wouldnt surprize me if theres not close to 400rwhp in the 4.8