[wa-fu]

Any aftermarket crank pulley you buy for the KA will not have a harmonic balancer.  If you call up Unorthodox racing and talk to them, they will tell you that a stock KA pulley does not have a "harmonic balancer" anyhow.
I have a Unorthodox pulley that has been sitting in my closet for 6 months.  Does anyone have any DEFINITE evidence that this mod will  cause engine damage?  Most of what I have read is just hearsay.  What about the "lightened flwheels cause engine damage" thing.