Originally posted by cczarnik
After much experimentation with the perry, I put a cline on it, and after I figured out where to put the cline, it is an absolutely awesome setup. Aircraft attitude has absolutely no effect on engine performance now. Only tip is to put the cline just before the needle valve, not between the needle and carb. When between the needle and carb, there was some richening upon transition to full throttle that couldn't be dialed out.
This has been a topic of discussion a lot before. I know Cline says put it between the needle and the carb, and that's the way I ran mine. But, as you mentioned, there was trouble in the transition. I finally took mine off completely, but left the check valve in the presure line, driven from crankcase pressure. THe engine runs great this way, but you have to be careful that it doesn't leak fuel all over the place. I have a hard time remembering to release the tank pressure after a flight. I think I'll put the Cline back on before the needle and try it like you said.