Oil consumption is a myth!!
 

If you are consuming a quart of oil every week or more often; this is NOT normal.
The FIX is replacing the Valve Guide Seals. Assuming your PCV system is good.
I have fixed 14x different VQ35DE engines with this oil consumption condition. I never got any complaints. These 14 people are a testimate to the quality engines coming out of my garage.

Okay.

Cool story

I'm sure they are a huge part of the problem

Hello, I have a house in Arizona on the beach for a great price, OP. Exclusive offer just to you on this world-shattering discovery! PM me for details!

C'mon

Pics or it didn't happen.

Valve guide issues on a 7k+ rpm engine, omg breaking news.

Not a very fun job to do, that's a lot of valves! I always suspected the valve guide seals were a major factor on the RevUp oil consumption issue, but bottom end (ring) wear can't be ruled out either.
-Icer

Not worth it imo. I rather put 1 qt of oil every 500 miles(never have to do oil changed wooooo!!!) then pay a shop to do valve guide seals on this engine.
That being said my 350z doesn't burn oil(unfortunately)