
The Factory Metal Works new Amal 900 series velocity stacks.Fits Triumph, BSA, and Norton vintage amal carbs.CNC machined in the USA from 6061 aluminum. Comes in unpolished aluminum. Length- 2.5″ Outer diameter (intake side)- 3″ Inner diameter (carb side)- 2.75″ Phone: 1-888-308-6641 Email: thefactorymetalworks@yahoo.com Or visit thei world at:http://www.thefactorymetalworks.co