I have too because now treats has them for 70 bucks lol. But you're right, if you have to purchase a nearly $300 fucking dollar special pinasco webbed crank with a hole in it then it's kind of moot.
Also, aren't these like kind of useless on stock cases that are restricted to 13mm max anyhow? Putting two carbs on is just kind of like putting one larger carb on .... and I thought with stock cases anything over 13 was a waste because you can't bore the intake anymore than 13mm? Or am I completely wrong in this logic.