I am trying to find a plug wire set for a BBF with a Prestolite Dizzy. Right now, it has motorcraft wires on it but one is cracked and they haven't been replaced in a long while. Funds are an issue, so I'm looking for a decent set for a decent price... Specific part number would help as well... recommendations???I am also putting in a Pertronix elect conversion. Do I need to change the plug gap? Learning as I go...