"There are lots of jets, power valves, and other parts to tailor the mixture to your particular application"

The same is true of the Holley / Weber 5200. you can make it flow to 330 cfm, and it only uses half at low speed. The way I plan on building my motor it ought to be a great carb. With the motor in its current stock / worn out form it is actually a little to much carb as it bogs if you slam it open at low speed.

Someday I may build a radical 292 and at that point I'll use two webers. That is no better than a 390 holley, but let's face it, dual carbs get more ooo's and awes!
Bob