Here's a photo of my new engine that arrived today. It's a Jett .76L. I'm doing the 30 min. run-in on a test stand. I only ran it about 5 min. because it's quite a bit louder than most engines I've run on the bench. I was afraid a neighbor would toss a grenade over the fence. I haven't decided whether it's going on the Twist or the Pizazz. It will turn a 14x4W at 10,500 if the specs are correct. I'm breaking it in with a 12x7 for a light load and lots of air over the fins.