according to my gauge.....5-6 at idle. 11-13 at cruise which is 3500-5000. wot it will jump to 14-15, max. this is an '04 225ho at 1 3/8" below on a 21xd bullet & stock 27 gade. i tried a custom cut 32" mazco re4 this weekend & it jumped 2-3 #'s at cruise & wot??? loved the prop, but not the hole shot.