tune

Just to add if your AFR is off a bit he will fix it.. If you add nitrous and need some timing pulled he does it. I think I paid more than he charges now, but I would be willing to pay that amount again. As a matter of fact when I buy HPtuners I will probably throw him a couple of hundred just b/c he has put up with my BS changes for over a year.
B

I will add one last thing. It is hard to mail order a tune on a 5.3 that will go 13.5 N/A with AFR that is damn near perfect, that idles and drives like a stock truck. Nelson has done it with mine with no problem. I will add that the 13.5 was run at over 100 degrees, I will update my N/A time when we have cooler weather.

Charile Wheatly does a great job as well!

I've heard alot of good things about nelson tunes from this website!