Shaun is not in SoCal but I would suggest his email tuning over anywhere out here. I have not heard many good things about anyone in the area TBH. I know there was some guys around here that tuned the Terminators real well but I have not heard much in regards to the 4v coyote tuning.
Plus, I have always had a A+ experience with Shaun so I may be a little biased.
Not to bash racers edge but a buddy had a horrible experience with them. I'd seriously recommend a trip to AED. I did a 5hr trip to them and 100% satisfied. Well worth the drive.
Well if someone can send me a tune i would want to do that. and its cheaper. But i dont know who to go that that very good. For a dyno tune, i want someone amazing.
Another vote for AED. He can also fully defeat the stability control in the race tune which to my knowledge no one else does. Mine kept coming back on on the road course. Car made 457 with a non ported CJ setup on E85 with one revision over the base tune. Will be having him tune it remotely on the dyno very shortly.
Another for Shaun at AED. Been running one of his revised email tunes for probably 60k miles now, car still pulls like a freight train with 125k on the clock.