Northern California - Levi's King Ridge Climb Info?

So, the Levi's King Ridge Gran Fondo will probably be my first official century (after Fatty's 100 Miles of Nowhere which will have maybe 600 feet of climbing). I was supposed to do the Medio last year but thumb surgery forced me off the bike for the whole summer. This year, I just decided to bite off the whole thing.
I'm not that good of a climber and would like some info to prepare by trying to find similar climbs here in OC.
I know major climbs are King Ridge and Coleman Valley. What are the stats on those climbs? Climbing elevation, avg %n max % etc.
I know there are other climbs as well and would like info on those also.
And if any of you NorCal'ers know of similar climbs on SoCal, especially OC; that would be great as well.

http://www.mapmyride.com/routes/view/7039797

Hey, last year I was a lousy climber, usually last or second to last in my group. Now am even and ahead of the guys riding a triple! Two things I did: one lose weight, I think it helped, second I sprinted up every hill and still do. Slowly at first some days they would be guys passing me on their big ring. I kept at it now I can make it up the hills on my big ring too. So find a hill and sprint up it 5 times twice a week. Before you know it you'll be in much better shape and the hills won't be as hard.

I am doing Levi's Gran Fondo as well I'll be wearing my 50+ kit. See you up there - Phil

Thanks, but still looking for the real info. In my experience, MMR really flattens out the hills on long rides.
I've heard of grades up to 18% or so and wonder how long they are.
I can't make it up something like that yet.