Scotty, It looks like an older FAI pylon racer. One clue is the "grime" on the engine. FAI pylon uses a 80%/20%, alcohol and caster oil fuel. It looks like it has a lot of castor "gum" all over the front end.
Australia has a number of excellent FAI competitors. You should be able to find someone there who could tell you more about your find.You might try to get in touch with Bruce DeChastel there, and if you are successful, tell him I said hello. Greg