1) . The standard Procharger kit can bring crankshaft horsepower up to nearly 475 horsepower, though this system is a tuner kit and requires user-provided custom tuning, so your gains will vary depending on the aggressiveness of the tune and what fuel octane you're using. 2). You'll need fuel injectors (which will be in the $300 range or so, depending on flow rate and brand) and custom tuning, most likely on a chassis dyno. You'd likely need 3-5 hours of dyno time, and you absolutely need to call around to local dyno shops for rates, quotes, and tuning time frames, as they can vary wildly between shops. 3). The ProCharger Kit is rated for 6-8 hours of install labor. 4). We do not do installations.