help on tune up and carburetor issues

[centuryhouse]

A minor update. I took whatever that thing pictured below is, off. And the truck seemed to run either the same or slightly better, hard to tell. No idea what it was, or what it was there for.

Also, I took the cap & rotor off and looked at the internals underneath. Everything seemed to move freely as it should.

Next is probably procuring a timing light. I don't see any timing marks though, so I may be looking in the wrong place. The last time I messed with timing was 25 years ago on a Mustang, and it seems like the marks were on top of the harmonic balancer.

Originally Posted by centuryhouse

And this is the thing (not sure what) on the brake booster: