would this be a problem? looks like there was a bolt there at one time...
(pcv valve in top left for orientation purposes)


what is this green connector next to the battery for? nothing in sight that looks like it should plug into

Bolt hole, nothing goes in that one.

Green connector...I'm guessing horn? (I really don't know)

that'* a relief. it just looks like loc-tite or something was in there.

no, that blue and white harness goes to the horn. it works fine.

Nothing ever went into that threaded hole in your cylinder head. The two heads are interchangeable, so that may be used if you flip it to the rear. I'd have to check.

The green connector is your fuel pump jumper. Apply 12V to it (jumper to the positive terminal of the battery) and your pump will run. It'* been talked about in several topics recently.

ah, thanks
built in diagnostics