[Hozer 88GTConv]

a chip will give you the benefit of matching fuel and timing curves exactly to your combo.

Stang Crazy is, imo, one of the few who have attained a solid tune w/o the aid of a chip. I promise you he is in the minority.

Is it possible w/o a chip? Sure. But your odds of success (that being a well-mannered street-strip machine) go way off the chart with a sound chip and takes a lot of guess work out of your tune.

I also believe that a chip with a power adder gives you the best cost-benefit you could ask for in this crazy hobby for the insane.