The car that you are thinking of is probably the Sirius Racer developed by Adelaide (SA) Alfa guru Lloyd Clonan. It was originally fitted with various 1.5 and 1.7L engines with a supercharger and single suck through carburetor. After few too many detonations and rebuilds he shelved it, until his young assistant got hold of it. It now has a supercharged 1.5L engine again but this time with an ECU and water injection. It's still a work in progress, I'm not sure if they have had time to continue with it lately...
Kaboom - can you post pictures - are you still on the BB?!
~Benjamin
Kaboom - can you post pictures - are you still on the BB?!
~Benjamin