What is the best plenum?
I have herd that the 3.4 plenum isn't that great so that leaves the 2.8L or 3.1L?
Is there any difference in the 2.8L and 3.1L?
I have the 91RS and the 85 and there plenums look the same on the out side. The 2.8 is the only one I have realy taken apart(for cleaning).
As far as I can tell the 2.8 and 3.1 are the same except for there "2.8" or "3.1" markings.

 

http://mustangeater825.50megs.com/car%20pics/dualTB.jpg


that woudl work

I think 2.8L/3.L are identical.

heard some fiero gusy got about 20 hp gain over stock with that intake(stock 3.4L)

 

or you could try something like this
http://www.westcoastfiero.com/engine...nifold_60.html

but it's 700 bux for one of those

 

WHOA!

thats...cool..though.


The..one..I..linked..guy..used..a..middle..plenum. ..off..a.2.8/3.1L..MPFI..and..welded..some..tubes...on..it...I. ..think..it..wou..be..worth..dumping..it..down..to ..1..to..avoid..dual..TBs.