Originally Posted by simonr23
my vspec doesnt have any carby inserts , will tis affect my neede settings, or affect aything that is going to affect the engine?
carb restrictors (inserts) are tuning tools used to de-tune a given motor. they restrict the air-flow into the carb intake. the smaller the restrictor, the greater the air-flow restriction. they will help to calm down a motor. running without one will not hurt a thing. however, using one (usually the blue one in a v-spec) might help make your buggy more drivable.