I have a Todd Miller clone I run in stock appearing I try to gear the engine to run around 7000 rpm on my small bull ring track. Our SA class allows us to run any engine modifications as long as carb still appears factory. Can be bored choke removed etc. no tilly mikuni or 390. I got the engine used and it makes decent power but these guys I’m competing with are running extremely modified engines claiming 28-30 hp. I assume I’m running around 17. Knife to a gun fight. I would like suggestions on carb head cam combo or any expert advise on getting power from this engine.