The rear head on the front is actually an MC28 SS/SP modification... they need all the help they can get!

The MC21 never used a head conversion, and as Roy says, the F-III heads are Fr/Rr styles, just as the standard ones.
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Andy.
NSR-WORLD.COM

Please keep all responses to Forum posts on the Forum so that others may benefit.

Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.

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