Some of the arguments on here are just plain retarded. It will be IMPOSSIBLE to curve a triangle port, but if it's a straight port, as long as it has the same area as a round or slot port. That's it.... period,it will perform the same. However, most ports that have large areas must be curved. Either way, you can get by with less port area if you take a 5/8ths roundover bit and run it along the inside of the triangle port on both ends for a flared effect. Just prove people wrong, I suggest you build this, or I will have to //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif