RE: knocking Saito
More on the cylinders and intake pipes.
All the FA-150 and FA-180 engines have the cast intake with screw-in attachment. Only the short run of the first version FA-120S had the curved pipe.
This picture shows the ABC FA-120 cylinder on the left, and the first production FA-120 AAC on the right, it's the FA-120S.
Bill.
>>EDIT: This also shows how much larger the fins of the ABC cylinder are. wr.