Ok, like I said earlier, I'm putting my 1968 droptop 400ci bird all back together. I have the engine 95% done and she's almost ready to be dropped back in. My question is this... Should I put in a stock style cam shaft or put in a RV performance camshaft? What will the difference be in performance between the two, also gas mileage and general streetability between the two? I imagine that the stock camshaft would do but I also don't want some rich spoiled 19 year old kid smoking me with his modified turbo charged rice burner. I'd appreciate any input on this matter or any other performance tips. Thanks!