How much info did you give the cam companies? I know you said you had some new heads out of the box, and I know you can get flow numbers from the manufacturer, BUT I seldom see those advertised numbers on my flow bench. When picking a camshaft information is KING, and things like exact compression ratio, runner lengths intake and exhaust, carb size, and on and on, all make a difference. I use an engine program, run it through with good numbers inputed, and then call the cam companies. Their recommendations are usually very close to my numbers, mainly because they are using a similar program to give you their recommendations. If you don't have all the numbers, they simply give a good guess to the program.