Audi 80 B3 2.0 Petrol, Solid Old School Project. I’m selling an Audi 80 B3 2.0 petrol with a carburetor. This is not just an old Audi — serious work has been done on the engine, and the result is really noticeable when driving. ENGINE WORK DONE: Carburetor recently overhauled and adjusted, Improved intermediate shaft on bearings, Improved cylinder head, Intake and exhaust ports polished, matched to the manifolds, valves lapped. Compression 15, New bearings, New piston rings, New timing belt, New water.