What cam should I get?

How about this!? Change the rockers NOT the cam! Rockers available in 1.6 and 1.7 or 1.75 ratios right? Do the math and discover the magic of higher ratio rocker arms. Used to the big deal was high lift short duration which was the big reason for roller cams. The steep ramps would eat regular lifters so the mushroom tappets were developed to help with radical profiles. With the higher ratio 1.75 rockers a cam that would normally have .400 lift now has .466 with little effect of duration characteristics. This will require possible spring changes and pushrods as well but hey.... you can do this without loosing water.