You make some good points. What's interesting is that with a quick Google search, a brand new NOVI-1200 supercharger is roughly $3,000, so installing that on top of a low mileage 5.9 Magnum wouldn't be more expensive than rebuilding a big block with similar HP.
And correct me if I'm mistaken, but with a turbo you dial back the boost if need be and turn up the power whenever you want it.
Hmm...
If you take a look on ebay, you can often find used centrifugal supercharger kits for 5.0 mustangs for pretty cheap (~1500). They would be a perfect fit for a 318 or 5.2 mag or 360/5.9. I bet for 2500 I could pick up a used kit, junkyard 5.2 magnum, fuel system, piping and bracketry and be out the door. Turbo could be done for a lot less, but a lot more work and skill required to setup the exhaust piping.
