'70 Monte Carlo, Factory 402/4-speed
 

Pretty hot car ordered with the 330hp 402 and Muncie 4-speed...definitely not the typical Monte Carlo buyer. However, it sounds like the original drivetrain is long gone and the car currently has a 454 and Tremec 5-speed...along with Vintage Air, aftermarket gauges, etc, so there's not a lot of originality to revel in aside from the interesting paperwork.

Link to 1970 Monte Carlo auction

https://i.ebayimg.com/images/g/uEUAA...ek/s-l1600.jpg

https://i.ebayimg.com/images/g/aTMAA...gcW/s-l500.jpg

According to the dealer invoice, the OO traded in a 67 Corvette on it.