I dont know much about reciprocating engines, just remember a few questions from an ATPL written with some DC-7 questions...
xxx
Power available was not RPM only, but BMEP as well... Then on top of that, I remember the propeller slipstream on the wing reducing stall speeds... and immediate power increase available, not the case of jets from idle power...
xxx
If I remember well, an Allison J-33 engine or RR Nene had something like 30 seconds spool-up time from idle to max power...? Probably was hard for the Mustang P-51 or Spitfire pilots to live with that difference when transitioning to F-86s Sabres or Gloster Meteors...
xxx
Flying a prop airplane, and transition to jets WAS difficult...
Happy contrails