Surge tank design, how not to do it

Mick, the set-up you've described is basically exactly the same as what I am running, but I have an internal pump in the surge tank, and you have an external pump. There is basically no difference there.

As I've already stated in this post, I disagree with the theory that the pump does any significant heating of the fuel. My cast aluminium fuel rail is bolted directly to the aluminium intake which in turn is bolted to the alumium head. They conduct heat to each other very well, so all the heat from the head and cooling water goes straight to the fuel rail. This heat is the problem.