Saw a supercharger installation that used a centrifugal blower. That is, the compressor end of a turbocharger. The blower was mounted about where the standard air cleaner is, so the intake plumbing was pretty simple. What was complicated was the drive to the blower. It appeared to be driven by pulley located where the A/C normally is - that presumably was removed - and shaft ran along the front of the engine to a pair of toothed pulleys that drive the supercharger.