I have the RB C12 which means we probably have the same engine but yours will have more aggressive porting and make a bit more power.

It was set a little rich from the factory which was great for break-in. Once that passed, I tuned it for racing and it's absolutely amazing.

Tuning it isn't any harder than any other high performance engine and the RB website has finally been updated with a bunch of info to help out if you get in trouble.