Just to compare notes, what would you guys suggest as the best setup for these carbs, considering its the same 39mm Keihin TPS carb?. I notice with interest that the carb discussions on this forum are alot more advanced for some reason. Something to do with that James Dean guy? Is he a carb engineer or something? Many of us over on the DRZ forum are finding a just off-idle cough or hesitation. I have the following setup which is pretty typical for many DRZ's: -airboxlid gone -twinnair filter -aftermarket pipe -strokerspeed.com smog removal kit with following recommended setup: clip in middle postion, 2- 2.5 turns on screw, install the included #100, #48, #172 jets (sorry i dont know thier proper names). And the long big needle (name?). Some run a #165 or 168 or 170, even 175 but the consensus seems to be 175 is too rich. Maybe the #168 is a good average? Some use the #50 instead of the #48. Whatever. After I rejetted with the smog kit it runs better, more power, faster, but the slight bog is ruining all my fun. From what you know, and it sounds like some of you are doing all kinds of things to your carbs, whats your best guess? Aside from WR's being higher revving, and the 426 having more displacement, should not the carb setup be analogous(sp)? Any thoughts appreciated!