if you wanted to stay N/A this is what i would do-
swap out the TBI
for a 1 piece turbo intake setup. going from TBI
to multi port fuel injection will be more efficient, and the 1 piece intake ports were desinged to flow the same amount of air as the 782 head's ports. the flex fuel vehicles ran this exact setup even though they were N/A. you will have to use a turbo computer that is reprogrammed to run N/A, alont with a dual-HEP
turbo distributor. Shel-Game can get you a computer, but you will have to add several wires to the harness to make it work.
from there add an exhaust header, those are still avaliable new and arent expensive.
i would also deck the head, and get a cam with more lift and duration to take advantage of the increased compression.
with all of that you would have a VERY healthy N/A car that will be a lot of fun to drive, i've been kicking around the idea of doing just that if i find another good rust free body to play around with. lumpy cams and high compression is almost as much fun as a turbo, sounds cool as hell when you roll up to a stop light with the cam loping away.