Originally Posted by Chillytoes
"That's always been my opinion because there are only 4 ways to increase the power of a reciprocating engine:"
There is a fifth way, increase the revs.
Hmmmmm! Increasing RPM does not necessarily increase power as fuel burn time (cetane index), scavenging efficiency and gas flow rates are all going to compromise power output after passing through the "sweet spot" where max power and torque are produced.