If i remember correctly the only difference is the curved elbow to fit the throttle body due to the strut tower. remove the elbow and just install the egr/throttle body and u should be good to go. once the elbow is removed it should be just like an 87-93 intake i would presume. dont quote me tho, i am going on experience from magazines such as summit and jegs. they sell the aftermarkets like trick flow and cobras then below sell the elbow...sorry to babble
Uhhh, I don't think this is a good idea at all. First, it's already been pointed out that the SN manifold is more restrictive than the Fox body's. Second, your going have to do too much work to make it fit. Why not just hit the local junkyard or Ebay to get a stock upper. At most it'll be $50 and a hell of a lot easier to install. Use ye old heads here.