Classic Alfa Romeo 105 GT Trumpet GTA VELOCITY STACKS for. Alfa Romeo 105 GT Velocity Stacks GTA Style reproduction for 45mm CARBURETTOR, trumpet can be turn in any angle you like, available in our store also the 40mm version. We also stock many other Fiat and Alfa Romeo parts - please do not hesitate contacting us if you're looking for something you can't find on here! FOR MORE CLASSIC CAR PARTS AND EXCELLENT DEALS VISIT OUR STORE! The item "Classic Alfa Romeo VELOCITY STACKS 105 GT Trumpet GTA for 45mm carburettor" is in sale since Thursday, June 2, 2016.This item is in the category "Vehicle Parts & Accessories\Car Parts\Air Intake & Fuel Delivery\Carburettors & Parts". The seller is "auto-bella" and is located in Cheshunt. This item can be shipped worldwide.