HyTech roller cams are designed with the help of Jim Dour from Megacycle Cams. Megacycle has the most in depth experience with four valve cam design. And use a Computer Landis cam grinder to grind HyTech’s cams. For the K series motors HyTech has 5 different intake and exhaust cams depending on the specific combination that is needed. Since there are so many engine combinations one or two different cam spec’s isn’t enough to get the precise cam timing that is needed. Only our in depth engine dyno testing has shown use the need for more cam spec’s. We also offer drag racing cams with VTEC eliminated to reduce valve train weight to operate at higher rpm levels. Below is a list of our street and road race cams. We do not run the lift much past .500 mainly because the heads do not flow any more appreciable cfm above .500 lift. And the valve train geometry starts to get a little bit out of what we would call a same range. Our drag cam spec’s are confidential.