Twin Cylinder Carb Balancing Equipment - Grok / Katdash Harmonizer
 

For those that are trying to balance their twin cylinder carbs Katdash have started to make new Harmonizers based on the design by Grok (Mark Von Striver). More details here:

Harmonizer – KATDASH Airhead Instrument Lighting

The first batch sold out in 15 hours and the next lot will be available from late March.