This is on my 1990 Wrangler with 4.2L. I am swapping to the Motorcraft 2100 carb...and I bought a whole swap kit from ebay seller.
There is a spacer/adaptor with allen head bolts that bolt into the existing carb stud bolt holes on the intake manifold...but they don't want to go in easily.
I am going to use a tap to clean up the threads...but when I search, I can't find the size of the threads. It looks to be a coarse 5/16 (18) thread. I took one of the new bolts to the hardware store and matched it to a nut of that thread pitch.
Can someone please confirm the size for me?