Undersquare vs. Oversquare Engines

wow Talk about a lot to digest ! this is a great thread I guess the most important thing for me here is that I seem to be on the right path with keeping my LA now not to hijack but why is everyone so stuck on the 360 ? whats wrong with stroking my 318 and still having a numbers car ? can't I overbore it for a bigger displacement than 390 and do I really need to ? wouldn't I be better off spending the money to open up my 360 heads for more flow ? after all isn't a motor just like a pump ie more flow is more everything ? sorry to ask so much at once but I read somewhere that de-stroking adds horsepower what kind of comparison would that be for a cross breed car ?