I would start with 8BU10, 2 steel rivets and 14.5 rollers. I am assuming that Revy is 4,000 feet ish. Try your sled out when you get there, should hit about 10,400 out of the hole and hold between 10,4 and 10,200 all the way to say 50mph. If your rpm is too low lighten up the rivets. I run 2...