Although a number of street rods have been set up with 4-71 and 6-71 GMC blowers, the Roots-type pumps have never been very popular, due to size and practicality.

Blowers anc turbos can affect emission levels because they require exhaust and inlet system modifications—nitrous doesn't! The only drawback to nitrous oxide is the $2-per-pound cost to refill ...

Blower is overdriven only 20 percent so it can run on pump gas without water injection, but it still helps the mild 350-inch L48 (equipped with 8.5:1 stock cast pistons and 350-horse 350 cam) make ...