I'm leaning towards mixing cams in high power motors right now. Like a moderate N/A intake cam and a stock itr exhaust cam. Jun2 intake cam is nice as well as skunk 2 stage 1. The mix of a moderate intake cam and a "small" exhaust cam works pretty well on motors spinning 9k plus, enough overlap for good high rpm scavanging but not too much to effect spool. This also only works well on motors with a manifold with a good merge collector and decently long runners. For people who might want to do some experimenting I'd suggest to stay away from cams with large primary lobes like skunk 2 pro1's and most toda cams.