How do these three things relate to eachother and to the performance of the car? What makes one clutch better then another one? For drive shaft and flywheel is it better to go heavy or light? Does one of these effect any other?

Thanks for any information you can provide.

Bill

different clutches have greater coeffecients of friction allowing better grabbing. the weight of the driveshaft and flywheel depend somewhat on what you want. i would say go lightweight (aluminum for both) because it is less rotating mass and the engine will be able to spool up faster. however, youll notice that a flywheel is much heavier than a flexplate becuase the greater mass has more inertia to keep the engine spinning at XXXX RPM while you depress teh clutch to shift, it helps keep the RPMs in the power band.
i would still say go light though because you can just rev the engine with the gas instead of relying on the flywheel.
hope this makes some sense to you.
good luck
matt

PS
if you are puttin out lots of power n torque,be careful with an aluminum DS it could bend/break with all the power, you could get a driveshaft safety loop to protect you if it breaks, but you are still out the money for the shaft.