Are you using an 11 and 14 wrench combo to close it? I just installed one over the weekend when me and a buddy put in my LS7 Clutch. Make sure you hold one end with a wrench and tighten the other end with the other wrench. It shouldn't have fluid coming out.
This remote bleeder should be mandatory for all when doing a clutch.
my remote bleeder works great. only thing i'm thinking of doing is finding the correct size speed bleeder so i only have to pump till the airs all out the line. anyways you probably just need to crank it down tighter. good luck.