Managed to spend some time with Andy this afternoon and have a good fiddle with a set of F3 32mm carbs and if there was ever any doubt how good NSR carbs are its gone now.

Both were run back to back with the same F3 reeds but changing the intake.

The PWK39's carbed very well really and had great power all the way though the midrange but always lacked alittle something down low.

The difference with the HRC F3 carbs was instant, great pick up and much stronger bottom to middle power. Peak power reamined the same but with a loss of 100-200 rpm over rev compaired to the PWK's.

Overall I think the NSR HRC carbs better but its still easyer to jet the PWK's.

Think hard before you ditch those NSR carbs in favor of something else!
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If I have to take the carbs off once more...