Quote Originally Posted by scttydb411
iacv...one is linear and the other rotary. auto has the iacv on the tb=3 wire and manual is on the back of manifold=2wire.

interchangeable w/ modifications.
How much work is it to do the necessary modifications or how much will it cost? I have an auto intake manifold but a 5spd car... I really want to switch from my d16y7 intake manifold to the d16y8's....

Appreciating the help so far.