While I agree that Chrysler did it with millions of 318s, my thinking on it is on the 273, it might make more of a difference with the small cubes. Kinda like a slant 6, they need all the help they can get. Not that they cannot make power, but everything needs to be "more right" so to speak. Then again, I could be slap wrong. I know if I was building one, I wouldn't want the big port intake on the small port heads. Obviously, on the factory stock 318 it wasn't an issue, but I'm thinking on a performance oriented 273, it could be a spot for reversion.
