aluminum air cleaner adapter?
 

I have been looking for an aluminum or metal air cleaner adapter that is from a standard two-barrel that goes to a four-barrel air cleaner. All I have found is plastic ones, and these keep warping from the heat of the engine and the weight of the air-cleaner? Does anyone know where I can get one that is made out of some sort of metal?

sorry but I dont know of anyone that makes metal adapters like what you ask. are you good with a welder and cut-off wheel, maybe you can fab one up.