big block vs. smal block

I really don't know enought to talk about this intelligently but was told this on this board when I was talking about my friend sticking a 440 in his scamp..

However, I suspect that gas mileage will be different..and lastly, crowds are fickle..one day they like this and another day something else...I was to a mustang show..everything from a 65 to an 09..some really nice cars..best of show ? a stock 09 bullet..honk !

Ian.