Some of the turbo guys have messed with the 5.0 throttle body in varying degrees of success. It's not a bolt for bolt swap.
Switching from SD to metered air on a 2.3 isn't as easy as the 5.0 where you can buy everything you need from FRPP. The 2.3 MAF cars also had DIS, so that's not a drop in affair either. Not that it can't be done, it's just a pain in the butt, and you're sorta stuck with the stock MAF. Even if you ran a 5.0 MAF, I don't think you could come up with the right injector size to compensate like the 5.0 guys. To do it right would require changing the MAF transfer table in the computer.
How much effort are you looking to put into this? |