Now that the captain his a three speed will NHRA add hp to that combo? When that combo was factored originally it was rated with a power glide trans only and was rated accordingly to with that trans. Now that this has changed do to new information, NHRA should add 3 to 5hp to this combo to make up for this new performance enhancing information. When they changed the rule and let big block Chevy’s use different heads they rated them differently. This deal with the 1960 283 is rally no different. Sorry captain that just the way I feel.