Super tricky to answer.
99 times out of 100, aftermarket camshafts are ground 4° advanced. Your Comp Cam included. Meaning in most cases they would be installed "straight up" (but are ultimately advanced 4°).
Without a degree wheel, clearance putty and the knowledge on how to set it up properly without valve to piston interference, I would say the three to ten hp isn't worth it.
JMHO.
GT