i've been down the entire road as far as carbs go;between my 04 wr450 and my 05 yz450 which is now a ice cube big bore i've tried multiple fixes on the fcr and came up short then tried a edelbrock which solved alot of the issues but still needed a few fixs....got the ebrock right and loved it for awhile(awhile being the key word) it started 1-2 kicks even hot,never stalled and had a grunt off the bottom that was unequaled....but,after AWHILE it started having issues which were found to be related to wear,mostly because its not very dirt proof. anyway a carb thats coming undone is not the one to have so i sent my fcr to zip ty;i put it on and starting hot is easier but not as good as the ebrock... the bottom pull was not as strong either BUT...the mid to top is freekin unbeleivable! its much easier to dial in now also,and doesn't stall,just be sure to get the adjustable lj either the whole bowl or just the cover...i just got the cover as they were out of the bowl. i've ordered up a couple of needles to try to get the bottom to perform a little better than the NWR needle i'm running;gonna try a EMS and a EMR. the zipty mod is worth it over the ebrock and the dependability just isn't there with the ebrock,it plain flunked the long term mountainman test. GO ZIPTY:thumbsup: Mountain Man, just wondering how you got ahold of or even heard about "TOO TECH" back where you are? I race pretty much every weekend with Rick Johnson.