Hughes Whiplash Camshaft

RustyRatRod said

I probably run mine to 4K every time I shift to out of 2nd, but it's a 170 and it likes to rev.

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Yes a short stroke 170 is a different beast! The intake runners of the Hyperpak are perfect length for the RPM a 170 can achieve on the track but do nothing by the time the 225 explodes!