Yes, the very same organization.
18mm restrictor must be located immediately after the throttle body. Also used for methanol. 20mm restrictor with gas.
The new bergs would be perfect for this. Lightweight, small, powerful. One major problem is that the new jap engines are pushing LOTS of hp. I, like you with Flattrack, am extremely passionate about this topic. But, food just got to me, so I will shut up and eat....
-Parsko