so I was looking at my new throttle body from xtremefi and my old throttle body and realized that the ports are different.

New:



Old (and no one make fun of my ******* vacuum port plugs)

[

So what is the port on the new one (furthest right)? I lost the egr vaccum port and gained what?

 

Weird im pretty sure my stock TB has 4 vacuum ports and same with my 454TB

 

I purchased my 2" tbi from extremefi as well.

 

I recall seeing something about Xtreme filing in the charcoal canister port. I emailed them on that when I purchased mine. Bottom line was to port it into the base of my open element air cleaner.

Mine was shipped and currently at the post office since they would not leave it at the door. I should have it this Saturday. I will let you know if mine matches yours.

 

One of those small ports, should just be direct vacuum to operate the thermac valve. However, not many people with modified motors would use that...

Not sure if its what your are missing though?

 

[QUOTE=graebz28;3841723]I recall seeing something about Xtreme filing in the charcoal canister port. I emailed them on that when I purchased mine. QUOTE]

Thats how I recieved mine, filled. They filled it prior to porting the tbi. Then again I got mine back in 2004.

 

Mine came with the port filled as well.