Quote:
Originally Posted by 87octane
The XFI factory cam gear is advanced 6 deg from the factory regular cam gear (non XFI cam). The regular cam timing is actually retarded 10 deg at the crank, dirty little secret. That puts the XFI gear at only 4 deg retarded. A worthwhile improvement is the 10 deg adv gear from 3Tech, effectively getting the cam straight up, regardless of which cam you run.
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Are you sure about that? I thought the XFi cam was ground 6 degrees advanced and the gears were the same. Mike told me not to advance the XFi cam more than 4 degrees.