According to this page, the 6 indicated a 6-cylinder, a 1 indicated V8 until the 1971 model year. Starting in 72, there was a letter code for engine ID.
https://tinindianperformance.com/Pon...20decoding.htm
So yeah, very much a base model, was probably a Chebbie 250 with a three-on-the-tree, so at least it was an easy conversion in already having 3 pedals. It looks like the steering column bucket may have been shaved where the shifter knob was, and that "lift for reverse" doesn't seem like a Pontiac thing for '70.
It does look like a nice build under a fairly nice patina, and the interior condition is quite nice. Does look like fresh seat upholstery in the front bench.
Wide tires on steelies with poverty caps, some suspension tricks, good looking engine bay and so on.
Priced high to my taste. Not to mention I despise green on and in a car.
I'm a fan of longroofs, one of my 2 dailies is a 96 Roadie wagon with almost a quarter million miles on it. There's a used car lot across the highway from us with a white 96 Caddie hearse that I would own and drive in a heartbeat, but I'm full up on fleet size right now, although I did actually make some moves on that 69 LeMans Sprint convertible a few weeks back on this page. Our 69 Firebird Sprint convertible could use a big brother, but we just couldn't get the deal done.