Quote Originally Posted by JeffYoung View Post
Hmmmm..to me whether they work or not seems irrelevant.

Let me throw out a hypothetical.

Car A comes with a plastic but adjustable cam timing gear.

Rules say:

a. You can change plastic cam timing gears to metal.

b. Except that you can't use adjustable gears unless fitted as stock.

Does this mean the guy with the adjustable cam timing gear LOSES this "stock advantage" if he switches to metal?

I would say no, and I think the same is true with the RR shocks.
From the bible:
"Cars originally equipped with plastic/phenolic timing gears may substitute metal gears, provided that the design, dimensions, and cam timing remain as stock. Adjustable timing gears are prohibited on all cars unless fitted as stock."

Hmm, clearly written by engineers and not english majors.

The metal replacement gear must be identical in design and dimensions, A plastic, adjustable timing gear is stock. Therefore, the replacement metal gear must also be adjustable - i.e. identical in design.