I just thought that was alot of lift for a 280 some duration cam, which would require some heavy seat pressure, but it is a roller so be it. you are going with a good quality rocker arm and 3/8 push rods?
Actually the lift is middle of the road, there were/are options in the .570-.580 range with the same duration. He picked out the .560 in part to maintain good valvetrain stability verses some of the other options. The plan is to use PRW rockers with Mike's correction kit. He has had good luck with them , but would prefer to use Comps, but can't because they do not make a 1.6 ratio. As for push rods, I will use whatever Mike says when I get to that point. He uses Smith Brothers push rods, which is great for me since they are a next day shipment from when they get ordered.