I need to get my original 1970 B2 radiator re-cored. the shop says they can do it original 5/8" tubes spaced 9/16 or they can space them 7/16 which would add a few more tubes, thus increasing the cooling by 15-20%. I do drive the car occasionally and I would like to have the increased cooling. My questing is do the judges count the radiator cores? Do they deduct points if it had more cores?