Here is what I will be putting on my resto-mod Rupp Roadster 2. It should be in the neighborhood of about 12 to 13hp. It still has the stock camshaft so I doubt it will turn much more than 6000rpms when it is attached to the 20 series TAV on the bike. Should I pony up another $75 or more dollars for an aftermarket camshaft or will the stock one be plenty good?