I have 4 personal project vehicles. All will run the 0411 (LS1b I believe) PCM (55 Belair, 56 Chevy Panel, 56 Chevy Truck, 66 Nova). I have 2 BBC, 1 SBC and one LS1. I will want to be able to read, write, and flash calibrations files. It would be nice to do this in real time - is there an auto tune feature? Which components do I need and what are the licensing requirements for the four vehicles? Will I be able to use their VINs in each tune? Tried reading about all of the products but it just all seems to sound the same after a while. I'm sure I could call Sales but I'd prefer to get more than one opinion. Thanks. -Bob