I don’t have it so can’t say, but im running regular carb with floats properly adjusted and I have no issues with any bogging, overfilling etc clean all the way thru the rpm, not sure its worth it, but im sure it helps but for that money …
I made my own out of fuel filter with replaceable element. Took it out. Drilled few holes installed Y connector on supply hose and installed a smaller return hose. Worked grat! AND UNDER 20$.
Depends on what carb u running. I had this setup on my spare cart with pwk on it. It was great on bottom and top. But as u know pwm is a top end carb. This setup will not change performance of carb. I now have pump around bc I got it cheap, but performance hasnt changed either. If u dont have pump around u just beyter if going with filter setup. I run short sprimt tracks never had problems with fuel slinging in a bowl…and never ran out on long streights.