Okay first off I'am a DUMBASS! I dropped a socket with extension piece into the upper intake manifold. Then it happens to drop into the lower portion of the manifold. With that said i have the upper intake manifold off the car. Can anyone give me some do s & don't s on porting the upper manifold? thxs guys!

Edit: Modern Performance TB is still not horiztonal at wot. Did my best to adjust the cable, but still no luck.

you can't port it from what my uncle tells me. you can port match and polish the runners to the gasket though which is what I'll be doing this week since I'm done port and polishing the head. So basically all you can do the to the upper is portmatch and polish the runners and port the TB hole.

if ne1 know how to polish the whole upper part lemme know ;)

Extrude Honing, only way to get the upper plenum.



15.9 @ 86.7mph

Injen CAI, 55mm TB, P&P Intake, Crower Cams, Hooker Header, ERT/Catco Cat, GS-T Muffler, AFX UDP, Crane Ign Amp, S-AFC

Yup, you can get at the runners and get rather close to the plenum if you use a dremmel with a long flex extention, but for the plenum itself Extrude Honing is about the only way.

my uncle said that the way they do that plenum is to pump hella mud/sand into the manifold until its really smooth, I don't recommend doing it yourself though :P

Who does extrude honing and how much does it cost? Is it just for the upper plenum or can the lower part be done too?

http://www.extrudehone.com/

Both upper and lower can be done, extra to port match. All the pricing should be on the web site. (it was last time I looked)

Hades, that is essentially what Extrude Hone does, with the exception of it's a bit more of a refined abrassive than a sand/mud combo.



15.9 @ 86.7mph

Injen CAI, 55mm TB, P&P Intake, Crower Cams, Hooker Header, ERT/Catco Cat, GS-T Muffler, AFX UDP, Crane Ign Amp, S-AFC