when do u need a high flow petcock

i cant see how anyone would need a high flow petcock. i mean if you open it up and drain your tank how long would that take? can your engine use gas that fast?
 
yeah, you really dont need one, i changed mine to a higher flowing banshee petcock just because my old one had torn screens, and the outlet size is the same as the larger carbs intake tube, so no fooling with different size fuel lines, and they can be had for $20 new