Nitrous on 360

I have a 1990 LA 360 with roller lifters. It's all stock except the performer intake and edelbrock 650 cfm carb. I was looking at installing nitrous, the NOS 125 hp non adjustable kit from Jegs. Has anyone used this kit or have any recommendations? I've never messed with nitrous and don't want to blow up my engine or wreck my car. Any insight would be appreciated. Thanks!