its a long block is that bad?
Carbs require a little more skill to tune.

People probably steer clear of the car because most likely it was originally an EFI car if it was an 86. I wouldn't go near an original EFI mustang that was converted to a carb either.
I'm not really sure if any early run 86's had carbs to begin with, maybe someone else can answer that.
I believe in putting newer setups on an older car, but not vice versa.
Some 86's came carbed from the factory I believe. I wanna say EFI came out mid year and they were still getting rid of the last of the carbed models in 86 as well. I could be completely wrong, but I seem to remember reading it somewhere not too long ago.