Im looking at having a header made for the 263 in my 51 special. Im wondering on how to group the ports together. Should it be front four into one collector and back four into another? Should it be front two and rear two grouped into one with the four centers into another? what would sond best trough dual exhaust, or does it not realy make that big of a difference an should just be done whichever way is easies? thank you in advance