Sent in by the owner of the car, Chad, this video shows Long driving a 1969 Porsche 2.5-liter 911ST built out for vintage racing at Chuckwalla Valley Raceway. Chad says the car generates 207 horsepower at the rear wheels from its short-stroke 2.5-liter engine, but is otherwise largely stock--no coil overs, no aerodynamics, just a classic 911 with 1970s-level prep.
During the race, you can see Long go all-out (including a corner-exit tank-slapper around 3:40) for the first 3.5 laps or so, before backing off and having some wheel-to-wheel fun with a friend from around 8:30.