This is a difficult question to answer, because "best" could mean many things. For example:
Best race clutch
Best match to the original
This I will tell you. Unless you are racing the car, stay away from high performance clutch assemblies. For the street they don't last as long, they are harder to drive, and will wear your leg out faster.
Most autoparts stores carry a variety of brands that they sell as an assembly.
As far as the end play goes, I don't know that right off hand.
I drive my '81 with "gusto." The clutch I'm using is a CenterForce clutch. It is pretty light on the left leg compaired to a competition 3 finger unit. The counter weights do increase clamping pressure. It is hard to "slip" it off the line. "Not that you would want too." And I never had the clutch go "over center" at high RPM's (6000 rpm.) As endplay is concerned, I'm not sure about that myself. Sarge aka Darryl
330hp/380lbs ft.-350 cu.in.
Richmond T10 :cool
thanks for reply. your running about the same numbers I am. I,m reduing mine, have suspension , seats, wheels and engine done. There are boxs of parts out in my garage ready for install, but it,s not quite warm enough up hear yet. Maybe in a couple more weeks. later.