C10 pro street HELP

[Birdz85]

Let me start first by saying my name is Josh and I'm new to the board! I have been building an 85 c10 for 2 years or so now and I'm to the point in the project where I need a axle that'll handle the power I'm putting to it because the 10 bolt isn't going to like it much. Any ways I joined this forum because I'm in the market for a ford 9 inch and wanted to talk to a few or as many guys as possible as to what width their axles are and what size rim and tires, C notch? Etc etc.... I have attached a pic of my truck as well, still under construction!