[cobrarkc]

Just to add to that the 351c open chamber heads are actually more prone to detonation than the quench ones are which opens a whole new can of worms. If you go with the quench heads you will need a custom dished piston to get the compression down to 8.0 or 8.5:1 so you can run a decent amount of boost, aluminum heads will allow you to run maybe one more psi. To get back to the supercharger question, no one makes a specific kit for the 351c so you will have to buy one for a windsor engine and have a custom bracket made and then there isn't enough room to fit one in the Contemporary body without modifying either the body/engine compartment or hood unless you have some really trick bracketry made. I wouldn't let this discourage you because anything can be done. It will make a smoking motor.