prob will do mate, would just convert to millimeters and measure in that. so it would be a port opening of 68mm. been watching your build and i love it. dont get many cars like that here in the uk so i just love seeing them. just cant believe you change your mind more than days in the year..lol. would love to see that lvl 6 over here!! hmmmm, dont think i have 1OOO$ for shippin and import duty, nevermind!!