I never said it was wrong, I'm saying its like chasing a big flow number---If you put 300cfm capable heads on a 450hp engine--that engine will not drive as well as an engine with 225 cfm heads on it making 450hp. The pumping loss most are so focused on is because its low-hanging fruit--easy to remedy. I've seen it so many times I've lost count. Guy tests his engine and we try multiple carbs. Guy leaves and tries biggest dyno sheet carb, Guy calls and complains about how it just doesn't seem to perform well (idle/part throttle etc...) Guy says yeah it pulls real hard when hes got the room to really stand on it. Guy puts on smaller carb that we tuned and produced maybe as much as -1.7" to -2.1" that cost 4hp @ the last 500rpm. Guy calls and tells me it starts better and how its got a stable idle now, part throttle is snappy, and pulls everywhere and he can't tell the difference at the top and Guy actually thinks it is faster now. Cuz it is. But then again my carb guy and I have really been looking at this and documenting this trend for years. A "slightly smaller" carb is always better in the actual real world. J.Rob