The triple carb set-up uses two folded couplers to join the carb shafts together. It is possible to re-use your original couplers but new ones are strongly recommended. The original couplers are made of fairly thin material and allow some wind-up that effects the synchronization of the carbs. The new couplers are made of thicker material to minimize wind-up.
Keith Jordan (verified owner) –
These couplers are more stout than the “original” ones on the car. As a result of installing them, I no longer have one side that twists on acceleration causing a sticky throttle. I now have even carb performance and a smooth throttle pedal.