On engines, I have some really good ASP's. I got them straight from the factory, that is I collected them from the people who built them. Most are undergoing "modification" mostly to diesel but some to go REALLY fast. The diesels get an OS 1a carby and internal mods along with a "button" head for compression adjustment. My 32 gets 8 minute engine run turning a 10x6 prop on 8 mls of fuel. On Saitos I am experimenting with fuel combos in a new 62 to see what performance I can get for Duration (vertical drag racing). Using a non pumped engine (YS) I get an additional 5 seconds of engine run. Any way we are starting at 25% nitro, Coolpower heli oil and a 12 x 6 Bolly carbon prop. Let you know what happens.