Cam variations?

[CTBreakbeat]

I am looking to buy an s13 and ive heard that the 91 may have some sort of cam variation that gives it more power than the 92 or the 93 with the same ka24de is this true?

[whateverjames]

supposedly they do. it's not a huge increase, and i don't think it gave more peak horsepower but i think the power comes in sooner. just what i've heard, i'd like to see a dyno of a 91 vs 93