Thruxton needles have a fairly radical taper and are way too much for an almost stock setup. I am running K&Ns and went with TBS needles to cure a flat spot and they are perfect. Even for me, the Thruxtons would be too much. Dinqua has the big bore kit and he IS running Thruxton needles and for that they are perfect.
High on the main? I thought there was no uch thing as too much (speed)?!
I run 160s and when I crack that throttle, the response is outstanding. I've tried smaller with poorer results. Also, the plugs are a perfect tan....
