Centerforce 2 vs King Cobra

A buddy of mine is planning on getting a new clutch put in his 1990 LX 5.0. He is wondering which clutch is better between the Centerforce 2 or the King Cobra. He is planning on leaving the 5.0 mostly stock. Only plans I know of are full exhaust, mild cam, and 3:73s. HP will be alittle under 300rwhp and 350ish rwtq.

In a year or 2 he plans on swaping in a 351 with basicaly the same mods and he wonders is the clutch will be able to match up with the 351 along with the tranny.