The twin cam punched way above the norm when produced, unfortunately a gallon of Duckhams every 1500 to 2000 miles was not unusual and went out of tune very quickly.I have no doubt with more modern internals you would get more reliability .There are so many better upgrades available today but if you have a genuine Mga twin cam to keep it authentic you need to keep the engine. A mate of mine has a Twin cam plus a total re build MGA from Oselli with a 1950 I think and its a real peach quite well known in the Mg scene. Em
