For clutch spring tuning, I assume you bought the springs already. I suggest the black eso ones if not.
Get a fishing scale so you can test the tension strength of the installed springs to get them even.
They are simple though. Just unscrew the tension screw and let the old springs fall out. Put in the new springs and tighten the tension screw back down.
I did not have a scale when I did mine so I made some Mark's on the clutch arms and screws and counted the turns to remove the screw that way I could turn the screws back to an even tension. I ended up leaving the screws flush bit am planning on getting back in to tighten them up a little more for my kit, but it would be pretty good for a stock setup.
Just take a wire brush to get the rust off. You can deglaze your clutch pads if they need it.
It's pretty simple and can make a big difference in acceleration. Just can be a pain in the butt to remove your tranny each time you want to make another adjustment. Get a few tranny cover gaskets to have in case you rip yours while tuning things.
Dont over tighten the tension screws. They can drop out of the arm and are almost impossible to get re-threaded and out once that happens.
Maybe someone can chime in with an optimal tension weight for the springs. What their reading on their scale was.