"There's no drama with this Nitrous Pro-Flow stuff," observed Westech's Steve Brule as we neared the end of our test day. "You just put it on there and it works." But with all due respect, we'd have ...

Originally developed for industrial use, the 6-71 blower has become a hot-rodding icon. We delve into the details and test one on a 406-inch Chevy small-block.