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Remember you have titanium retainers also and that helps with valve control. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
T.T.T.
I've got 918's w/ 2.02 valves, using stock retainers. But I've got a baby cam (218/226 527/535 112). I was told the Ti retainers were overkill unless I was going to spin the motor to 7K reguarly.