Anyone ever do this? Is there a big difference? What mods do you have that you put a bigger carb on? Any help would be great. Thanks.

 

As far as I know it'll bolt right up. I might put one on my X but first I have to get the engine broke in. Then we'll see.

 

I know it bolts right on, I found other topics of the same nature. I'm just wondering how much power gain i'll get, I've heard that it isn't that good and it's better if you bore your stock carb and that'll give you better power. If anyone has a 400 carb on their 300, what jets are you running? Thanks for your help.