Cam selection help

Comp cams XE line doesn't take advatage of the 904 lift . The XE -HL line does. You could order a custom cam from them or anybody that takes advantage of the 904 lifter, though, it's not a needed issue.

IMO, a cam between 216*/218* @ .050 for a daily driver from 1500 RPM and up.
and a 230* cam for a hot street cam for a 2000 to 6000 RPM, a converter should be upgraded with this cam.

If you look at a split duration cam, with the Magnum head, 6* split is fine, but I myslef wouldn't go to far on a split. No more than 8* IMO.