^ adjustable cam gears, your valvetrain possibly, maybe shotpeened pistons if you're chasing big power.
if you machine the head more then 0.020" (0.5mm) you will need adjustable cam gear to make up for the lose in timing.
any1 know where to get aftermarket piston for those zc?
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Originally Posted by ralph_ef9 any1 know where to get aftermarket piston for those zc? Try ebay.com
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