I mapped an XR3i using a sprintex surpercharger many years ago.

I use a MAP sensor in the inlet manifold for load sensing which worked fine.

However, the TPS enrichment parameters neede extra work due to the pipe lengths and delays in the air getting through the charger when the throttle was snapped open.
This lead to too much fuel initially !!!

As for when the throttle snaps shut, that isnt a problem as you just set a fuel cut off on TPS as normal