1970 Chevrolet Chevelle SS LS6 Dyno Test We put Bob Phelpsâ incredible Chevelle SS on our Dynojet chassis dyno to see how much horsepower and torque a bone-stock LS6/automatic could make to the wheels ...

On paper at least, GM's crate motor program appears to offer engines that deliver excellent results in terms of bang for the buck. But the speed equipment business in general seems to thrive on ...