Marches must be one of the most confusing cars,this is typical, a site advertising a 722 thats been rebuilt from a 76B,a 722 looks nothing like the 76 series
http://www.race-cars.com/carsales/ma...0/722-20ss.htm.Several March 74/75/76/77 bitsers were raced here in the Atlantic series.
The 2 722's that came here Ken Smith raced one,I'm sure it was sold to Aussie,the other was run by Frank Radisch with several different power plants,last time I saw it was around 1977 at Baypark running a libre race with a Mazda rotary motor.Ken Smith ran a 732 after the 722 and it went to Aussie to.