I personally lean towards the turbo side. But if you're looking for a snotty intimidating hot rod motor that's not the right option. Nothing sounds more wicked going down the street than a nasty naturally aspirated motor. It's your build, your choice.

1975 Jeep Cherokee compound turbo 5.7 Hemi/6 speed AutoX/Drag/Street.
9.97 @ 140 slicks, 10.74 in autox trim