August 8, 2007, Fred McConnell in McKinney, TX, USA wrote:
"I put on new K&N filters, which are very easy to install, as well as take off to clean. Pictures show that you use the stock velocity stack from MGB, and then just stick on over. These were ordered from Summit racing for about $25 a piece. Part No: KNN-RU-4410".

These pictures are MGB carburetors, but the MGB air guide piece can be installed on MGA carburetors as well, as shown on the previous page. And the plate in the first picture is upside down, need to turn that around, don't want to plug the vent holrd in the carburetor.