External oiling question

Been starting to look into buying a block for my nightmare....Keith Black blocks are not drilled for an internal pickup. In talking to a few different builder certain combinations of parts will not allow for an internal pick up. One of them has told me that if you wind a big block high enough a dual external line is needed....I think to a point it might come down to personal preference. Have seen more than one 9 second BBM with an internal pickup....And plenty of 11 second cars with an external one....