It seems that no pipe is the same, if you change pipes be prepared to change the jetting to suit.
I run a DMC Alien and was staggered to find that I needed a #340 main, and the stock needle on the richest setting. I may add that I run a Castor 25:1 premix, with a Uni filter right on the carb throat.
wow yeah id be too. 110 bigger than stock.. Im gonna grab like stock through 400 mains and like 10 plugs so i can be really prepared. maybe a few different pilots too and some new cut off wheels too hack up some plugs.