Well....I finally got my Alkycontrol kit up, and working. Thanks to Razor's great customer service. Can't do too much testing on the street, yet with traffic, ****ty roads, and light snow, but with remote at about 12 O'clock, the red turn on LED lights at about 4psi, and it goes green at about 8 psi boost. Not like you Turbo Regal guys that see bost in the 20's. My 04 GMC 5.3 with Radix blower makes approx. 10 psi boost, the engine doesn't bog, and it definately has an extra kick. Can't wait to get to the track next weekend.