AutoX/Road race in a dart??

I'm gonna be checking out this threads ALOT. I'm building my '69 Charger and will be building my '70 Coronet 500 for road racing and Autocross. The Charger will be more for autocross and road courses where the Coronet will be for open road racing.

AutoXCuda....the video "Cool video of Cuda showing suspension and tire movement". What motor is that Cuda running?