big base circle cam in stock elem.

Historically it has not been enforced like that. Guys have pushed the envelope with parts and have gotten away with it. Some have been challenged at the track by tech officials, then the challenger is overruled. So the positive manner enforcement, is not being held up everywhere.

Sounds like roller bearings are the issue, not the size of the base circle/bearing journal.

Originally Posted by Dwight Southerland

That's not quite the way it works. The rules are written and enforced in a "positive" manner. That is, if the rule book does not say you can do it, then it is not allowed. Plus, according to the paragraph under "BLUEPRINTING" in the stock cars section, it clearly states "Stock factory OEM components (unless otherwise specified) must be retained and remain unaltered . . . " (emphasis mine). That's a good basis for it not being allowed.