ok well I understand that they wouldn't wanna give up what has worked well with them. I just thought there might be some specs somewhere. I see that piper has 2 syles of cams for a ma12. I just want as much power as I can get obviously. and im runnin crb600 bike carbs on a custom mani, 4-2-1 header with full stainless 2'' all the way back. lightend flywheel, decked head and port and polished runners. cam is the only thing I cant just make or fab up myself. ne thoughts on what would be a good lift and duration for improvments over stock?