What happen if I don't use the restrictor ( light green rubber with two black o- rings ) ??
Increase top speed ? Fuel consumption ?
I always thought the cone shape has something to do with air flows entering the carb.
On Road : Xray NT1 , RX8 , T4 || Mugen Seiki MRX4-R , MTX4 , MTX3 prospec || Tamiya M03 , M04 || Top Racing Sabre FD2
Off Road : Xray XT8 || Hobao Hyper 8
Radio : Futaba 3PKS || KO propo EX-10 eurus