F-Bird'88, thanks for the link to that Crane cam card. The lift is at about what we're looking for and the duration is right on too. Since we're using end caps rather than nuts and bolts, there shouldn't be a clearace issue...but definitely will check.
Been looking at Isky and Comp cams too. I had a Crane Fireball 286 in my old 350 and it was nice!
I had actually printed a cam spec sheet with these exact durations (from your link) at .050" but the lift was just a little more (518/239 vs your 509/528). So all the other info about spring loading and duration at .004" is different and that's where I get lost in deciphering that data. That's why I ask you pros!