You should be careful. Unless your engine spark knocks even on super, no way is your compression 10.4 with iron heads and that little bitty cam. If you "cam up" as you call it, you will likely lose some bottom end torque. If you run a compression test first, that should give you an idea. If you really have 10.4 with that small cam, your cylinder pressure should be pretty high. I would suspect in the 180 PSI range.