Seems like all of the posting for the last fiew weeks is about the 450. I purchased a left over 2002 WR426 last month and have been doing all of the free mods. Another month the snow will be gone and I can test it out, can't wait. Anybody out there with a 426 running at sea level that is very happy with there jetting that would like to share it? I plan to break it in with stock jetting and then change to E taper. Just trying to narrow down the order list. Thanks With all of this Woodruff key talk I have tryed to search old posts to find problems with the 426. Can't find any info.. Must be the 426 doesn't have a Woodruff key, he he.