I just installed a gt35 kit, my first tial sport external wastegate kit. There are 2 nipple on wastegate where do the lines go. I think this is the probable cause of lag of boost. Currently I have the top nipple blocked off and the bottom nipple coming off turbo

 

Leave the top nipple open. It needs to vent out when the spring loads up and blocking it is restricting its movement.

 

Pulled the plug will test drive tomorrow, thanks for the help. I got EBC do I hook up like internal wastegate using the bottom nipple