Todd welcome to the forum, but don't discount supercharging as a solution; people such as Neil Griffiths and others in Oz have been installing them in their Soarers for years and getting the hoods to close just fine:
http://planetsoarer.com/superchargeJmRoal/JimRoal.htm
Yes, the M90's are a low boost solution, but Neil (and others) are now developing screw applications which will make serious boost.
Which is an easier/cheaper installation? Fitting a turbocharger which requires a completely new, custom exhaust system, along with wastegate and BOV plumbing, plus an intercooler and all its attendant piping, plus a new intake.
Or fitting a supercharger, where you only have to modify the intake side of the motor and leave the existing exhaust system alone. You pull off the intake manifold & replace it with a new manifold plus supercharger, and fit a new intake to it, and adapt your existing pulley drive system to it (for low boost).
Maybe you'll save some money on the initial purchase price of a turbo system over an integrated supercharger/manifold "kit", but unless you do your own welding, I believe that savings will disappear quickly when you start plumbing it in.
Another plus for the low boost SC installation - these UZ motors are already high compression, so realistically, how much boost can you run on the street with normal pump gas without destroying the motor? Too, the SC introduces
no exhaust backpressure, so the motor will be as free flowing as it was before, whereas the introduction of a turbocharger brings a significant restriction to the exhaust of the motor, and this will encourage overheating and possible detonation. Ever driven a car with a partially plugged catalytic converter? Overheats and pings like crazy, right?
Don't get me wrong, I'm not dissing turbochargers (I own two turbocharged Supras), I'm just trying to balance the previous argument.
