In need of an education..340 vs 360.

My best friends, uncles, next door neighbors second cousin bought a 68 340 Barracuda off the show room floor that had to have 600 LBS of weight strapped to the front bumper cuz it would pop wheelies all the way into 4th gear! At least I think thats how the story goes.I Never heard the same about a 360 car though.LOL