I was wondering what is the name of the part behind the upper intake,the one that has a one large and two small vacuum hookups?When i switch to the 93 cobra intake can i reuse mine or do i need a 86-93 part?
the part your talking about is the vacuum tree that screws into the intake and supplys vacuum to the fuel pressure regulator,egr regulator and valve,big line supplies vaccum to the vacuum distribution block.and i'm not familiar with the 93 intake but if thread size match and its in same general location i don't see why you could not reuse it.
If I remember correctly the stock upper only has "ports" sticking out for the vac-line connections, so you really cant swap anything over per say...The 93 Cobra has 1 threaded hole and 1 PVC port..
You can use your nipple on the drivers corner for the PVC line on the Cobra....and you have 1 port under it for the PVC to connect to....
Your other vac feeds will need to come out of the threaded hole...the tree is best to use...
You should have another threaded hole to plug also...its straight down from the corner nipple in my pic...I welded mine closed..
Heres the underside of the 93 Cobra...I used to run it...
If your speaking of the vac tree thats specific to the Fox Cobra and GT40 upper intakes..Your gonna have to hunt one up or fab something for the threaded hole...I made sure mine came with one..
Seen posts stating the 5.0 Resto sells em...or post in the Corral classifeds, I'm sure someone has one lying around they'd part with..