Ill start this off with a thanks to whoever helps me out! I have zex dry kit that i bought for a mustang 5.0,when i built my truck with a lt1 in it i decided to try the kit out on it. Hooked everything up like it is suppose to be with the vacuum hose going to the fuel pressure regulator and when the nitrous hit the motor it would nose dive and cut out. It done this several times and all of which by the way was using a 75 shot jet. So i unhooke the fuel pressure regulator vacuum hose and hooked the factory vacuum hose back up to try and see what it done just by spraying the nitrous in the motor and let the pcm do the adjustments. Crazy thing is it worked perfectly! I ran it probably 6 or 7 times no problem. But im still scared that its doing harm. I mean the truck is fine i drive it every day. No smoke,great oil pressure and everything. Im just wondering if this is normal? Should i take extra precautions? And could i go up to the 125 shot without it harming my motor?