I don’t know, but I think he is ‘overselling’
the engine, and my installation just a bit. That stock intake manifold
and TB is rather massive, even though aluminum, so it is not likely to make my
overall installation weight – which is actually 430#. And for a 2.17 : 1 redrive
I rate it at 260 hp at the limit of prop speed. But still, the 20B is a great
engine!
Robin, is that your engine?
Al G