Cam change maybe or maybe not. You have to know what cam to install and where to install it at versus what you already have. Sometimes you just change the cam timing on the cam that you have. Also what will help is using the "Dry slick ex headers" they have Waaay bigger primary dia + shorter collectors + shorter primary length as well. They are readily available from major header companies. What cause's your problem is to much air speed to soon in the RPM band. You don't want less HP. What you want is a flatter torque curve and it's this curve that makes the motor driveable, smoother if you will. If you want to go faster just push pedal down a little farther. I use the same cam's for both my wing and nw customers. It's about driveabilty, the driver has to control the car not the motor.
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