Street car or race car? If its a street car, I would put it in straight up. If its a race car, I would retard the cam 4 degrees. If you retard the cam, then camshaft events happen in the higher RPMS, if you advance the cam then they happen in lower rpms.
If you're racing the car, then you want to stay in the higher RPMS as thats where the car will make the most HP. HP=trq*RPM / 5252 or something like that.
If I were you, and I wanted a street car, I'd put it in straight up and give me some more grunt in the mid range for better stoplight to stoplight action. Plus, I personally feel that a street car should not be spun high. (Shifts at 6000ish)
Adam