RE: THE UNOFFICIAL SHOCKWAVE 36 THREAD
Sounds like the Set Screw that holds the barrel in is To Tight, You probably Can't close the throttle all the way either. The set screw should be backed out enough to let the carb close completely. I use a Dab of RTV Silicone on the threads for locktight, it stands up to heat and nitro better than blue locktight and don't permanently lock it like the red locktight does.