Chevy guy trying to setup a mopar. Second attempt

Ok guys I just heard from the guy. His engine builder is recommending a cam of 230 intake duration and 240 exhaust duration with two degrees more seperation and 480 and 490 lift. He is also recommending a port job that costs $400 that will get him intake flow in the 250 cfm area. This is the builder that built it the first time. I believe that he is once again undercamming this engine, and I think there is a lot more flow that could be had by more porting (He has three stages of porting and is recommending stage one). I do not want this guy to spend the bucks and come home with basically the same engine with wayyyyy too much low end and no high end HP. The engine was peaking about 4500 to 4600 rpm. I think this setup will put peak HP at about 5000. He wants to shift at about 6200 and I feel he will be way past peak HP with this setup. Please let me know what you guys think.
Thanks in advance;
Bill