I have a 289 sitting in my garage under a blanket lol.Looks awesome, I'm not usually a fan of any of the old non-fastbacks.
Post up a bay shot when you can, I know a fair bit about them, I might know what it is if you haven't figured it out by then.
That'd be sick if it was a 289, They're not the fastest but they sound so good, Had a truck with one in it. :lol: