Radiator Questions - Leaning toward Champion

[sk8rgui]

My radiator has recently developed a leak and I'm looking to replace it. I don't have a powerful, supped up engine, nor do I have heat issues. I do like the look of the aluminum radiators and I'd prefer the electric fan setup.

I have an 82 2WD C10 with

• 350 CC Engine
• AC
• Turbo 350 Transmission

I'm leaning towards the Champion EC716 package and it seems like lots of people on here have had luck with Champion Radiators. I've got a few questions and I'm hoping someone has used this package or something similar.

1. It looks like the area on the top right is a heater plug, but I can't tell if it's plugged up or what. Does anyone know if that is where the heater hooks up? It's hard for me to tell how that area looks/works from the pictures(probably a dumb question, just trying to avoid future headaches)
2. How do you mount theses type of radiators. Do they use the stock brackets with rubber mounts? Or is there a lot of modification to the radiator mounts
3. Anything special need to be done when flushing these systems with something like BlueDevil Radiator flush.
4. The thermostat/relay kit add on - Any experience with it? I've seen some say that various relay kits make the car run too hot/cold.

Current radiator dimensions

• Approximate Core Dimensions: 18.75 tall (fin to fin) x 28.5 wide x 1.5 inch deep
• Approximate Exterior Dimensions: 20.25 tall x roughly 34 wide
• 3 small rows of fins inside it

Thanks in advanced