With different CR's the engines will be producing different 
horsepower with the same LOP fuel flow.

Ah a careful LMLer.  True, or at least that is what the theory sez.  And the higher CR engines should be more "efficient", produce more HP per gallon, no?  So I repeat the question:  what is everyone's KIAS at 17.5 gph LOP?  I originally asked the question in terms of dollars but got no takers, so I restated in terms of gallons because I am curious if the higher compression engines are really faster at cruise at the same burn rate.  17.5 is a good number for my 7.5 CR; if another is better for the 8.5 flyers let me know and I will gather some data and post.

paul