ok, i replaced the regulator spring, diaphram, plunger, and gasket. fuel tank, fuel lines, and fuel valves. i still have a leaky carb when engines not running, and when i release pressure it's more of a gurgle pss, than the PPPSSSSSSSS that i used to get.
heres my original post to clear things up.

http://www.rcuniverse.com/showthread...28&forumid=156]