Originally Posted by simplyconnected
I suggest this PV4 valve: CLICK HERE
Call their number to make sure this valve is also used for drum/drum applications.
I like it because the mounting holes are part of the casting. 1/4"-20 bolts fit. Most of us mount the valve on the fender apron, then plumb to it. The M/C brackets use space under the M/C, making it harder to change spark plugs. If you mount to the fender apron, the valve is out of the way but still very accessible.
Here's an internal view...
So can someone with Drum/Drum use disk / disk?