I'm running a PD36 with heads, carb, and exhaust on a 2052 Alweld. When I originally got the setup (pre-mods) it was underperforming, especially with a load. KP sent me a 3-blade prop designed for the 27 and it worked great. After the mods I ran both and still got better performance with the 3-blade, but had to run it deeper to keep it from blowing out and hitting the rev limiter. The 3-blade now has 150hrs on it and needs to be replaced, but I'd really like to get something that's a better fit to the modded engine. I love the 3 blade so I'd like to stick with that design, but I'm wondering if anyone knows of any other/better options; maybe a Hopkins 3-blade or something like that specifically designed for the 36?