about this if your talkin just heads as in bigger is better then i agree, but if your just saying bigger is better in general i disagree, i mean anyone cna go out and get a carb with a huge intake, but if its not hte right size engine then it will kill your bike, i had a friend who thot he was soo kool and went out and got a 24mm carb for his 72 kit, talk about stuuuupid, by the time he got up to speed we were out of site, haha, well jsut thot id give my thots on that