67 dart hot rod or stock?

ok, got my frist mopar a 1967 dart 270 2door h/t factory white with red gutz. she sports a 273 auto with a 8 3/4 suretrack. it's a numbers car but has a mild cam intake carb and headers. the car is super clean and i picked it up on a whim. that was last summer. had a open house party 2 day before new years and the guy i got it from came by with all the parts to put it back to stock. intake, carb, exhaust manifolds etc. all my cars i've had have been hot rod, well all but two. my 66 tripower GTO and my 69 427 copo camaro. my plan was to make this car go fast, real fast. but with the org. parts in hand i'm thinking maybe stock? it's not a GT or GTS so what to do. any thoughts. cheers jeep