273, or 318?

Seriously? Engine swap? I believe the OP said he was modding a '67 Dart 273-4. Who molests a factory 273 Charger or Commando car? Are you insane? Production numbers gurus chime in. Must be fifty to one 318s vs. Hipo 273s VINs. Stick with the money not 0-60. Wanna go real fast? '66 Nova SS 327 L79. I think these were running 13's in the qtr. stock. I better put my hat on!