Originally posted by sunshine
What i mean is that the cams will literally chew your rocker arms. They will score and make grooves in them till they just don't work as well as they should anymore. As for the todas I know Dan over at godspeed will sell the todas with portflow springs. I personally haven't used the combo, but he's sold that combo for a pretty long time and so I assume that it works well enough. Otherwise he would have pulled it a long time ago.
toda's products are very aggressive, the valve stroke and length almost pushes the limit on knocking the intake and exhaust valves together, so u want their double springs or another very nice set of aftermarket springs to keep up with the intense action that will be going on with ur valve train, as well as their camshafts have larger lobes that can cause interferance with some stock parts, not to mention of course they want u to buy their entire line of parts for many thousands of dollars, so choose ur parts wisely good luck with whatever company u choose.