Nothing beats an old "Tower of Power"....
1973 Mercury inline 6 "XS1500" 1.6L (99ci) when spun up to 9200 RPM could produce 205 crankshaft hp, more than 2 hp per cubic inch! and at only 257 lbs, produced .8 hp per lb.
It'll scare the crap out of you the 1st time you hear them turn rpm's that high, though. Sounds like movie audio of something going hyper-critical just before it blows up the whole planet.
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Common Sense is learning from your mistakes. Wisdom is learning from the other guy's mistakes.
Fr. Frank says:
Jesus liked fishing, too. He even walked on water to get to the boat!
Currently without a SeaCraft 
(2) Pompano 12' fishing kayaks
'73 Cobia 18' prototype "Casting Skiff", 70hp Mercury
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