Thats a real sleeper for sure
Modded Fieros are around, you just have to ask to have the hood opened, thats all. I've seen everything from S/C'd 3.8L Buick motors, L98 Vette engines to Northstar Caddy motors and I've been lucky enough to see thesr rides in person too
Even at the Woodward Dream Cruize this year a guy parked w/ us and he had a Fiero too, but his was tubbed and had a s/b Chevy w/ dual quads
Those 87-88' Fieros look the best IMO.