In other words, you put a big 850 carb on a 50cc Honda dirt bike, the engine doesn't want, or specifically can't use a carb that big. You take a stock engine and throw some big 230cc runner heads on it and the engine is going to run like a turd because it can't make use of the larger runners. Intake Velocity dies at that point. The bottom end is going to pull in so much air/fuel, combined with a lot of other things. But the volume and speed the incoming air flows has a lot to do with power. Same bottom end + more volume top end = less velocity. Cam timing, c.i., compression also come into play. Just like K&N filters, not every engine needs less restriction, simply cause it can't pull air in faster.
You explained it the best for me to understand what everyone was already trying to tell me. I had already bought them, and then realized I was dumb and should figure out if I want to keep them or return them. They are good steel 1.6 roller tips from Pace Performance, recommended by tbichips.com. I think I may return them, I still have time, and then I can get the headers that I need (leak from p-side manifold) and the rest of the exhaust done up all fancy like.
