Hey so its been a while since I have posted anything but I have been busy. I am looking to redo the ignition in my car as it is giving some rough idling and I think its time to upgrade the ignition to cure it. I need two questions answered to avoid spending too much money on this. I am going for performance here on each, so the first question is, will platinum tipped spark plugs benefit my car at all, and if not, why (56k friendly?)? As well as what spark plugs will work the best. The second question is, in putting on plug wires, the options in diameter are 8mm, 8.2mm, 8.3mm, and 8.5mm. Will a set lower than 8.5mm give the same benefit as 8.5mm (in other words, will 8.5mm be overkill)?