I've always heard 70mm and I just measured mine cuz it's in my room and it's 75mm on the edge. It could be 70mm in the inside where it matters, but the outside is definitley 75mm.
would anybody know what the stock maf for the 98 gt be? The 4.6 forums really don't help as much as you goes do you guys. You guys are awsome he posted there and they really didn't help that much if any one knows or heard what the stock is for a 98 gt thanx if you know. thax GT Jake for your help.