I think i will use APC props on this engine ( a 15x10 or 15x9 is what i plan on using ) I will use these MA classics on the Magnum 160. The Webra did turn the MA 16x8 really good at 8500 rpm at a rich 2 cycle setting. I'm impressed with the power of it, it started dragging my sawhorse it was bolted to across the cement.