Is a pushrod engine forced into a pushrod engine class?

["Waldron, James" <James.Waldron@CWUSA.COM>]

If a motorcycle engine is legal for the pushrod class, does 
it *have* to run in that class?

Could it run it APS-G and/or APS-PG?  Or because it is legal 
as a pushrod engine, is it forced to the pushrod class only?

Thanks,
Jim W.

///  unsubscribe/change address requests to majordomo@autox.team.net  or try
///  http://www.team.net/mailman/listinfo
///  Archives at http://www.team.net/archive/land-speed
///  what is needed.  It isn't that difficult, folks.