What cam should I get?

Think about it, it does not matter how "hard" you drive it. Pistons and bearings yes but the cam just opens and closes the valves. Now rpm's might matter a little but if you say keep it under 5000 rpms for the first 100 miles it might be helpfull maybe not. Change that oil fast, get that cam lube and any other junk that might have gotten in the motor out of there. I myself would change the oil agian after 1000 miles or so. Right after you change the oil and the motor warms up you can drive it as hard or soft as you want, the cam could care less, the big thing is the fist 1/2 hour till the lifters and cam mate. Once the wear patterns are set then thats it. As long as you use good oil the cam should last. That cam sounds big but I am not sure if it is really a 238@ .050. Maybe Mopar is pushing those # a bit. With .474 lift that should work out to around 228@ .050 with most cams, which should work good for it. Lets us know after a while how it idles and drives, ok?