[favgt40]

You should not put information on the forum if you can not verify if it is correct. I have the original drawings, and unfortunately you have made quite a few errors. First off, I hope no one else has to hold their car together with the carburetor box as you may have sugggested. Secondly, there are three different versions, a Cobra version, an E & F version, and one for the Gurney Weslake heads. The spacing on the Cobra and the E&F version are different in both width and length. The Gurney Weslake version is an entirely different animal. Thirdly, the original print calls for the base plate to be made from 10 S.W.G. or .128" Dural. Get your facts right.