Another "Is Fuel Injection a Worthwhile Upgrade?" Question

My best buddy works at the local hot rod shop here in town. 3-4 years ago they’d install tons of FItech systems mostly on chevys and fords. I asked him the other day about it, he said thy don’t install any fuel injection systems like than anymore. To much hassle
Yeah and there's no worse feeling than having customers "come back" because of those problems.