You mean they don't work, I work with planes and they go zoom zoom fast. But seriously, 10HP off, that's some serious negligenceDanger Dude said:I have seen 10 HP or more off especially with mobile units that are put up and taken down regularly and in the weather. Before any dyno have the guy show you his most recent Calibration sticker or documentation.
The world of Hot Rods is full of dishonest people. Hell look at the Tornado swirly devices and claims of HP gains