Well got the old summit cam all packaged up ready to ship back, I am just hoping that the 6401 cam will pull to redline (5,500 RPM)like advertised, Like i said I am open to other suggestions anything to anything bigger,also wondering if stock springs would be ok to reuse with the 6401 cam, I have cut the valve stem guides to .530 with teflon seals, remember it should be around 9.5:1 compression on a set of lightly decked 906 heads with KB hyper pistons, ferrea SS valves, and eagle H-beam rods, still need to get over to turbo action, but I need to finish the engine and get it to the dyno to figure out which converter to mate to it,gonna give my engine machine shop a call monday and see how things are going,

-Mike