1968 '340' Barracuda vs 1968 '383' Road Runner

In 1968, just like in 2013 the mid size car is what a majory was buying if buying a car. No matter how you slice it in equal cars in stock from the 383 was quicker then a 340. Are you claiming that a 68 340s was qucker then a 383s? How come the giant killer 340 wasn't killing that giant? Or in 71 was a 340 roadrunner quicker then a 383? Finally who was smarter back in 1968 paying a few hundered more for a roadrunner when its worth almost twice a 340 a body. I love my 68 Barracuda but I would also love a 68 Roadrunner just as much, I just can't afford a 68 roadrunner!