lo po cam dilemma

As for me; you couldn't give me a cam that lists the intake at 288adv/214@050. That's a real Dcr killer.
With 2.76s and a stock TC ,She's gonna need all the Dcr you can scare up.

It's hard to recommend the RV grind without knowing anything about it, but since you didn't like the 292, you will like the 288 even less, so by process of elimination; RV get's my vote;no contest.