fcr39mm or41mm

I am about to have a 440 big bore and head porting done on my quad. I want to know which carb is better the fcr39 or 41. I read in a mag that the 41 made more power on a dnyo. Has anyone tired both of these carbs if so which one was better.

[400exJOE]

I'd say go with the 41mm. The test was done on a simaliar equipped 440 as you have, so I think you would get the best power out of the 41 FCR

[MIKE400EX]

Which magazine & what month had the carb "shootout". I remember it but can't find the mag.:confused:

[twisted threads]

the shootout is in ATV action Jan. 2002

the 39mm made 43.2hp
the 41mm made 43.5hp

[MIKE400EX]

Thanks! Now I have to see who borrowed that one from me.:(