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fowljesse, the cams that Colt advertise and i am assuming they are for the ford probe, are less aggressive than the interprep cams. The interprep cams themselves are not aggressive enough for power beyond 9000rpm. Keep in mind that what i am trying to build is a pure drag race motor. similar to leo ...

In my experiance with nissan engines, in particular the RB20DE which has very similar HLA's to the KL motor, if you want to reve beyond 10000rpm you just cant use the HLA's, what happens is that they collapse and you just lose power.

We also tried making the HLA's solid, it works though because of ...