With JWT S series cams you can use stock cam gears, springs and retainers. With the C series cams you have to do springs and retainers and I think cam gears to get the most power out of them.
Originally Posted by MN_SR20 With JWT S series cams you can use stock cam gears, springs and retainers. With the C series cams you have to do springs and retainers and I think cam gears to get the most power out of them.
You do not really need springs and retainers in C1 cams, however.
I run cams with a little bit more lift than S4s on a stock valvetrain.