I have the 87 oct. map installed for now while using the truck for work. I am running tow option off. I am also using all the superchips pre-programmed settings. I have seen the suggestion to up the 2-3 shift +2 from the superchips setting but what is that setting?

Is there any listing on what the superchips preprogammed settings are? I'd like to know where they are starting from stock. IE + or - what for shift firmness, shift rpm etc.

Also what is the difference if I enter in that I am towing over 4k lbs in the 87 oct. or perf program (not the tow program)? Does overdrive not come on or come on later?

Thanks for the info.
'05 4.6 Auto.