We've seen this Olds before. https://losangeles.craigslist.org/sfv/cto/d/simi-valley-1977-oldsmobile-custom/7191597467.html
I'm definitely a Oldsmobile fan and I like white walls BUT SOMETHING IS WRONG WITH THE WHOLE THING!?.....Longroofs Rule!
Not currently running. Troubles sound exactly like the problems I've had with mine. It's the partial electronically-controlled Quadrajet carburetor on the 307. I've now bought TWO replacements. First one only lasted 6 years or so. Still having idle issues with it.....can't get to the dang idle adjustment screw....
Here's the history: http://www.stationwagonforums.com/f...s-custom-cruiser-a-sad-end.48943/#post-429538