Intake exhaust cam swap!!

busa142

Registered
I was reading today about swaping out the exhaust cam for another intake cam. I guess it indexs the cam in a differant location..so you have to replace the spocket with an ajustable one. Has anyone done this...or is it not worth the time vs HP gain?
 
you will gain 6 hp, you don't have to replace the sproket if you know how an engine works mechanicly. i didn't replace the sproket but you can't use the new int cam mark cause your timing will be out.
 
thought I heard something about losing bottom end after doing this one, can anyone vouch one way or the other?
 
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