Gotch, sounds like OEM. As far as the ACT, to get a Motorcraft you will have to go to a dealer, when it comes to sensors and senders i always used Motorcraft, you'll pay more but thats what was in it from the factory.
To get some Korean pseudoequivalent, any auto parts store will have them.
Also, clean off the gunk of the back side of the throttle body blade, later years has a teflon coating to prevent the build up, but not 86's. I love 86's!
Good luck grasshopper!
