Dave i was making a point about comparing FLYING props for small block saito's as opposed to just going on bench running results.I've never bragged about top rpm from apc props mine turn around 9000 rpm ground run on average,i chose apc props BECAUSE they give awesome acceleration in the air,not on the bench.Have you heard anything from your plans supplier?
Gar35 jim has a good point,it's easier to recommend an engine if you know what type of airframe it is and how the owner wants to fly it.
ps jim apc props ain't no born again pard,they got it right the first time