Ok... there are what I term street cams, to drop into an otherwise stock motor. Freer exhaust and air filter needed to achieve proper benefits. Then a pair to suit 9.7 comp, but stock valve gear, then a pair to suit 10.2 comp to 10.5 comp, with stock valve gear. Also to suit stock valve gear, there are sets for stock motor with supercharger, and two sets for stock valve gear with higher comp and supercharger. All of these cams will assume good exhaust and air filter. If you wish to run no filter, that's your pidgeon. I find dirt reduces the power more than air filters. All cams previous suppose a rpm limit of 7000 max with stock valve parts. With a spring/retainer change there are another two sets depending on compression. This takes the rpm to 7600 ( and a bit more if the engine needs it). With shim under bucket conversion and stock size or larger valves I have two main sets I use depending on comp and I do one special grind which I only use if doing the head here, due to set up with .475lift. Also two grinds for supercharger with over 420 lift and different duration for F/A. A set of cams like the ones Mitzy has works great with 10.2-10.5 comp and less than 7500rpm. Smooth and torquey, better than a stocker, but still over .420lift (shim under). After a lot of work/research etc the cams for use under 7000 and with 10.5 pistons,like on my site will go in without indexing,like the street cams,although this assumes a good/new/low mileage cam chain. The highest comp I use with stock valve gear and associated lift cams is 10.5 unless I have the bike here, to index the cams. After having shipped cams about the place everywhere, I have found there are plenty of folk who think they can do this and not many really can. Back to tuning a bike for me at present, cheers Nev.