Listers:
Thought I'd share with you my experience with a set of modified needles that
were installed in my HS6 SU carbs. These were made by my LBC mechanic, a 70
year ex-racer who used to campaign a Midget in the 60's. He reprofiled the
needles by removing material from the shaft so as to give it a "wasp waist"
profile. It provides a very short burst of richness that augments torque
between 2000 and 4000. He calls them his "F-U" needles. (Don't ask!) He said it
was one way to cheat a little to get an advantage on a road course.
I can vouch for the effectiveness of the needles. There is a noticeable surge
of torque, especially when accelerating in 2nd gear. If any of you are
interested in these he can make more. Contact me off list. NFI.
Jim Jones
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