Is it 6cyl. or 289 c-code. 6cyl—$4,000 to $6,000. 289—$5,000 to $8,000. good luck
Depends on a lot of things you haven’t mentioned - is the drive train original and numbers matching? Might not be such a big deal with a six banger and a 3 speed, but it still adds value. Was the body work done by a restoration bodyshop, or just scabbed in? How’s the rest of the body? When the floor pans go, there is usually more rust in other places. I would guess anywhere between $4000-10000, depending on overall condition.
Check with Samuel B here on answers, he’s looking for a project Must. 67-68.
The 67 is not as popular as the 65-66 unless it is a fastback or convertible. I would say around 4-5000 dollars in good condition