You got it! But without higer octane fuel or a cool day you'll find the LT1 timing is pretty well set, even with upgrades. Now you don't need anymore timing with juice, you need less...

But most of the guys around here use TunerPro as it's way cheaper, more options, totally customizable and has a data record feature in it as well. So it is TunerCat and Datamaster with no limitations at a fraction of cost...

But TunerCat and Datamaster are excellent products!