I did some reading and determined that a 90 mm (3.5 in.) length intake would be the optimum length. I designed the air intakes with a slight 5 degree taper, also in order to achieve a venturi effect. After showing the design to our machinist extraordinaire, Dirk Tollenaar, he and I did some brainstorming to come up with the best way to manufacture the design.

A week later I picked up the finished product from Dirk, and to say I was pleased would be an understatement. I think these are the finest looking Weber carb air intakes I have ever seen. The machine work is absolutely beautiful. Dirk took the time to show me how he made the parts, and I was impressed. He also told me that he machined the inside of the intakes at a very slow speed to yield a very smooth surface. This allows for better airflow into the carbs. The entire system is made from aluminum. Each intake tube is threaded and has a screw on cap. A filter screen or thin foam filter can be placed inside the cap and then screwed into place.

The Ultra Hobby Weber carb air intake system consists of the following parts: 4 Intake bases, 4 intake tubes, 4 screw-on intake caps, and 4 aluminum nuts (for the bottom screws on the carb). This system sells for $475.00 plus $7.00 shipping in the USA.