is the wiring harness still in tact? they might have taken out the computer too... have you considered leaving it the way it is? that is ofcourse, if its running. just going along the lines of if it isnt' broke, don't fix it.

Index of /main/factory_service_manual/1989_1991

there is a pdf version of a factory service manual, will tell you how to install the intake manifold and all other parts that go on as if it was stock, but dissassembled. anyway, where do you live? if you're close by, i could give it a shot trying to put it back together. PM me, good luck man