Reply To: Resizing UU-2 main jets

[Edgar Minnie]

You need to change the small and large (2) venturies, the idle tubes, main jets, idle air bleeds, and be sure you have the correct lower, air horn, and choke butterflies………….the UUR2 was made for almost 200 applications, yes……200. There are an endless number of different throttle and choke shafts, as well as hardware. Do NOT bolt that thing on and run the car, you will end up melting the valves or burning a hole in a piston.