Will it be competitive after a couple of test hits?
No, it won't. And you'd have to be hopping mad to expect this.
Absolutely not, a competitive tune would require a combination of dyno time with knock ears and then afterwards many, many trial runs. even for a professional what you're asking for is impossible.
a professional tuner with a dyno might get 5-6% more output.
Most of the people I know would be extremely happy with a reliable 1130hp in their non-competitive street car, and could live with leaving 70hp on the table.
