The little spring that sits at the end of a spring loaded carb needle on late HS and all HIF carbs where applicable.

The paper gasket that goes between the carb and the cleaner elbow or pancake filter on HS4 and HIF38 carbs. For HS2 see 12H862B.

Standard weight 4.5 ounce spring colour coded red for HIF type carbs only.

There is an optional heavier spring coloured yelow at 8oz.

Special extra long nuts were used on some manifolds. These nuts are about an inch long for easy reach and made of brass so they'll never corrode. Especially handy on the inner two studs on dual carb set-ups.

Sold singly and usually 2 used f...

As an engine wears, the clearance between the valve stem and guide increases; as this gets beyond tolerances the car will tend to smoke under deceleration (when you take your foot off the throttle). Good valve stem seals will allow for greater wear b...