Here's an interesting analogy. I had this posted on the old web site too.
Owner Reported Performance, Cruise
112/A
4500ft, 24MP, 2500rpm. TAS 140 knots at 11.8gph, 11C. 2550lbs.
4500ft, 24MP, 2400rpm, TAS 140 knots at 11.5gph, 5C, 2340lbs
5000ft, 24MP, 2430rpm, TAS 136 knots at...