I say dump it. It was parked for a reason most likely. Keep it simple as possible. Newer cars scare the HE double hockey sticks out of me. I'm going back to carburetors and points like the old farts at the car shows.

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Tony H
W111 280SE 3.5 Coupe
Manual transmission

Past cars:
Porsche 914 2.0
'64 Jaguar XKE Roadster
'57 Oval Window VW
'71 Toyota Hilux Pickup Truck-Dad bought new
'73 Toyota Celica GT