hey guys new to the forum i have a 95 tt 300zx that i bought 3 years ago it has a gt 600r turbo kit on it i melted a piston on this one due to too small of injectors im new to turbo cars and im rubilding my 95 motor around a jdm motor basically stripping everything down and using just the block but my 48p heads i have a jim wolf pop charge ecu as well exhuast side mount coolers and hard pipe kit now i was wondering are these adjustable waste gates if so can i use a dual stage manual boost controller and does anyone know how low can i go boost wise thanks