Stickies: are the top 3 posts in this forum.
They contain all kinds of good hints, procedures for doing all kinds of good things.
Always try to include the year if known??
From what I can find?? 1971?
IF????? no ones messed with the timing? Then it usually doesn't move.
They sell factory "service" manuals on e-bay.
A "parts" manual doesn't help much.
A Clymer or Seloc manual isn't as good but if that's all you can get??