Is that 8K with a TAV on a coleman? ON the difference between the CS and CL1 high torque... The CS grind I found on the dyno cams web page looks like a good cam. The specs of the one I was looking at are .265 lift intake and exhaust with 225/236 duration and a 108 LSA ground straight up. Spins to 7K with 18 LB springs. Would totally work with the parts you have. I would recommend a larger carb with this more so than I would with the CL1 high torque due to its even grater demand for air flow at higher RPMs. This will sacrifice some low end compared to the CL1 but have much better top end. I would find a speed calculator and figure out what theoretical speed would be at both 5,500K and 7,000K both with the gearing you have now and if you changed gearing before making a decision on cams. Something to also know about cams is that usually they don't make peak HP at the max RPM. Usually it is about 500 RPM below the peak rated RPM so if you are wanting max HP at say 5,500 I would pick a cam that maxes out at 6K. Other things can effect the RPM range of the cam but to keep things simple and short this is what I recommend. Pick a realistic top speed you want out of your bike, figure out the gearing you are going to use and pick a cam that is rated at or 500 RPM above it. I am going to be running a cam that spins to 5,500 with a TAV and a 60 tooth rear and am expecting to be able to hit about 50 on my mini if I can hit 5,500. My goal is 40 as this is plenty fast but am pretty sure it will hit 50 when finished.
