78 Z - Water Temperature Switch - Blue Wire - Help!

15 hours ago, cherb32 said:

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It has the 78 fuel rail.  But many of the factory hose clamps have been replaced, so somebody has definitely had those parts off in the past.  Typical mystery motor.

You can piecemeal things, or do a thorough tuneup in one shot.  You'll probably end up doing everything by the time you're done.  

Compare mileage to valvetrain condition and you can probably see if there is $8000 in there.  There are other external clues too.