If you have fitted our inlet and exhaust manifolds plus an RC40 exhaust to a stadard 1275cc engine this needle in a HIF44 carb will work great if coupled with a K&N pancake filter.

This needle is richer than used in our stage one kit but is useful when slightly different mods are carried out.

A very usefull tuning needle for single and twin carbs when camshaft change for carbs with floating needles.

As fitted to our HS4 twin carbs