Hey guys I need some help. I need to join a piece of copper tube to a cast aluminium inlet manifold. So far I've tried the normal plumbing solder but it didn't stick. I bought some flux core brazing rods but I think I couldn't get the material hot enough for the rod to melt only melted If the torch was directly on the solder and it didn't stick. I'm using a pluming torch out of wickes. Can any one suggest anything else or any one can braze it for me in exchange of beer tokens I'm near stansted airport and can travel if you not too far away