I'm starting over as I seem to have gotten off on the wrong foot with this one.
I went to see the car tonight, and it turns out it is a 1974 280 with 87K miles.
Anyway, it has been out to pasture, as it were, for the past 8 years. The owner drove it occasionally during that time, but nothing substantial.
The car is in great shape structurally and the interior is in good shape.
Things I noticed as I drove it are:
The idle is very high even when warm.
The brakes struggle to hold the car in place when shifting into gear.
At 60 mph it sounds like it could use another gear.
No white smoke was apparent while at speed. It only appeared after we stopped and then started again.
From what I've read this is the M110 I6 engine, which I've read is pretty robust.
I'm still debating on this one....I need a daily driver and I"m not sure this is the right choice.