Don't get me wrong, I'm not bashing the Hypertech. For what it is, it's a decent product. Basically it allows you to adjust timing, transmission (automatic), rev limiters, and speedometers. The beauty of a chip is that it can be used to do those things, but it's able to do them with far greater detail. For example: Alot of cars with large injectors tend to flood while starting due to the huge amounts of fuel coming in. What a chip can do is cut back on the fuel during cranking to aleviate that problem. What I'm getting at is when you start doing mods to a car, you're going to have to set the tune outside of factory parameters, wether it's carbed or EFI. Think of the chip as allowing you to do the equivalent of changing the jets and or accelerator pump cam. Gives you alot of ways to fix quirky problems that come along when you start making modifications.