Bought a pot of that chemical metal today and glued a few bits together with it to see how good it was. After it passed the "pull test", the "hit with a hammer test", the "fill it with petrol and leave it for 2 hours to see if it weakens test" and the "heat it up with a blow torch and hit it again" test I can confirm that it is, in technical terms, the mutt's nuts
Very impressive stuff indeed. I have since taken my manifold off the car, cut it down and glued on the metal box I had previously made and abandoned. It is looking pretty damn good and for the first time I think I am going to get a manifold I will be happy with.
So thanks millions for the top tip, i will take some photos when it is done. It will sit well below the top of the engine now, the throttle body will exit from the rear of the manifold, the air intake will sit between the manifold and the side panel.
Best to all,
Enoch