Quote:
Originally Posted by Tony Janes
There is already a rule about stock ratio rockers. Jeff Teuton ran into this problem on record tear down.
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That rule changed. They removed :
Aftermarket rocker arm must be identical to OEM so there is no longer a written rule saying the OEM ratio must be retained. The part listed in red above is what required the OEM ratio.
Supposedly the rule will be amended, again, to require the OEM ratio to be retained, as well as the OEM mounting configuration.