Why?

I thought there was a thread already going of some dude putting an ls in his dart?? The engine is not near as wide as the hemi and fit very nice. The one thing I could not understand was how most people on here were giving the guy crap about doing it. But last week at the track there was a guy with a 15degree headed sbc and it had a mopar intake on it. I guess the mopar intake made 40hp more. So each to there own.