The AME is what turned into the NORVEL. IIRC.
The split case VA with RYOT is a snappy little engine. It's like a lighter, more powerful Teedee that actually starts and runs. The standard long needle is easily bent. Mine broke off, and I adapted the NVA from a OS 15 size carb and run it as a remote setup into the VA spraybar. There's a stubby combat needle that was offered, but I feel better about my chances of not being able to break the remote setup. The threaded piston arrangement likes to self adjust. IIRC you're supposed to shim the piston where you want it and hit it with red loctite. I only ran mine a few times before the piston self adjusted. From what I've read, it sounds like even if they're treated to thread locker they can move. Mine is on a second hand 1/2a combat plane that was intended for a TD 049. With the VA I had to add a good chunk of weight to bring the CG far enough forward to make the plane flyable. Without the weight it flew like the EKG readout on a medical drama. Or the cheat code for a video game. Up-down-up-down-up-down-up-down-loop-loop-loop-ground. I've never tried the suction venturi, the split case leaks fuel everywhere, so I suspect anything other than a bladder would probably be an exercise in frustration.