I remember visiting Reg Cook in New Zealand on his Farm south of Auckland to buy some works Nissan bits from him and he had a 1298 cc A series he used for hill climbs and as he walked past it he have it a playful kick and said good engine that one 195 HP on the engine Dynometer shows what is possible with a good A series obviously it had all the titanium rods etc but was not from memory an AY head