please educate me on charge temps.

The lower the temp the more HP you are going to build, the longer parts are going to last(reeds, boots, pistons etc.) and octane needed is less.

Theres more to it than that but thats about all I know, and you probably already knew all of that.

Not a very scientific explaination but the cooler the air the more dense it becomes (more oxygen to burn). So you will have "more air" (= more oxygen)within the same size area when it's cool than you will get through the same size area (induction system) when it's warm air. Cold air will allow you to give it more fuel and make more hp. A cubic ft of cold air has more oxygen then a cubic ft of hot air.

Not sure what charge air temps guys are seeing with the BD kits but the cooler the better.