There are many relatively simple ways to add horsepower to your car's engine, such as installing a better intake, reprogramming the Electronic Control Unit, or swapping in a freer-flowing exhaust ...

â ¢GMC Roots type blower with dual updraft aircraft carburetion and two Thompson "Vitameter" water-alcohol injectors. •Judson eccentric vane supercharger, a positive displacement type for Ford-Merc.

Gearheads chase horsepower like it's a search for the Holy Grail. Anything and everything that can make a car go faster, we will try, including slapping an engine-driven air pump under the hood. Or, ...