To anyone that can help. My son and I are restoring a '69 CB350 and look forward to racing at NHIS next year. We are coming from Supermoto and have no experience with road racing vintage or otherwise and want to make the school next April. Two questions regarding our equipment; (1) where can we get more information or a supplier for the required belly pan? and (2) what do most racers do about exhaust in the novice class? The rules call for 2 into 2 but what about baffling and/or decibel levels etc.? Is tech inspection looking for stock headers and mufflers or what?