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If you're going to spend the money on a tuner, get HP tuners or efi live. It's not that much more and you get control over a lot more parameters
Plus more custom tuners support those. But in the end it would probably be about the same price to get a custom tune done by a good tuner. Half a grand or so no matter which one you go with.
The easiest is Diablosport imo. I ran it for about 9 months with no issues, then added a vararam and got a custom tune done by diablew. Runs very very well, completely different than stock.
I'm doing several minor projects and mods this year before I get into headers/cams etc. In the end I will probably have to get a full dyno tune, but for the time being I'm 100% satisfied with DiabloSport. I'd recommend them. I also run a DS canned tune on my fbody.