offenhauser cross-ram manifold

does anybody know where i can get a offenhauser cross-ram manifold or the edelbrock version of the same thing for a dodge? or plymouth? i want to put one in my car but i cant find one for anything other than chevy, if not is there any way that anybody knows of that i can still get it in my car? i have a 318 and its mostly stock i want to go to upgraded aluminum heads and that intake because i like the offset look and the slightly better performance than the inline dual high rise

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