building a mild Daily driver 318

Why not get the rebuilt $450magnum heads off ebay a 4bbl intake and a mopar 761 cam then use thin head gaskets that will put you in the 300+ are on a 318 unless all the magazine articles and mopar performance is wrong. There was a 65' barracuda running that set up on a 318 and running 13.95 area 1/4 times. Almost seems the magnum heads were designed around the 318