Engine wise is standard for a year, then a david vizard spec 1380 or 1430 with forged rockers, pistons and rods, a HIF44 carb on a heated metro bored out inlet manifold, ported, polished and gas flowed standard head, with rim flo valves metro turbo A+ block, straight cut drop gears and box, metro cam or a mild kent cam. My dad had one in his metro rally car and never broke. It was always somehting else