low compression

They are looking for low comression, not the ability to run pump gas.... That's where I was confused (and beaten up for...lol) too.
I'll also add, the street engine that is low compression will be sluggish unless the other components of the package (meaning gear and convertor) are matched to take advantage of the higher rpm nature of the power. A friend's stock eliminator engine was also low (blueprinted factory) compression, all stock parts except the duration and lobe shape of the hydraulic cam. It made 485hp 10 yrs ago. But, it made it from 6500-7400rpm. The car was a stick with 5.57 gears. That's why I say it's much more about the whole car, than just the engine, when we talk a low compression package.