it is free boosting . yes its ok to drive but dont boost it at all . keep it below the 0 on the stock gauge . and get a proper boost gauge before you post on here again
get a nipple welded/drilled&taped/nead it in where the factory one was . or run it off the nipple that comes out the bottom of the throttle body as thats just unimportant ( in relation to boost control) carbon canister