Throttle body spacers

I've never seen a tb spacer for that truck. Your very limited on power adders for that truck,I would convert it to a magnum or put a cummins in it. The magnum swap is not to bad on a 90 or 91.

I would like a mag swap and a 5 speed. Cummins swap is too rich for my pocket

Considering that's a short lived TB system. Your best bet would be to take the throttle body to a good metal shop and have them make you a spacer.

That's what I'm afraid of...