You might want to take the fuel block off the engine. Hot fuel is bad. I've just rerouted my fuel line from the pump. I bent up a steel line to go under the engine, behind the crossmember, then turns forwads, under the engine mount, to my Fuelstar now mounted on the chassis rail. Then the rubber hose up to the front carb, splitting to the others. The fuel line has gone from almost too hot to touch for more than 5 seconds, to nice and cold! And I have cut holes in the radiator side plates.
Still trying to exhaust the hot air out of the bay... guard flutes don't seem to do a whole lot. Even exhaust wrap did buggerall, and the ACL heat sheild didn't do much!