Hi Pa-18cub150
Go to
http://www.towerhobbies.com/ and type in
remote needle at their search box. There is also a Tower Hobbies icon at the top left of this page. This will pull up everything they carry in remote needle valve engines and parts. Basically the conversion kit is a needle valve assembly, a short piece of fuel tubing, a bracket to bolt the assembly to the rear backplate of the engine and a plug to seal off the opening from the old needle valve.
Dale