Got sum questions about blow off valves n rpm
 

Hey yall, ok got two questions I have a 2003 Mazda protege speed comes stock with turbo 6 pounds of boost n its manual first question is it has a recirculating blow off valve n I'd really like to swap it for an external bov will it hurt the car? N seconed I have to keep my rpms at about 2300 when starting in first is this normal?