just recieved my engine quest EQ magnum heads!! Duner advice please??

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EngineQuest Engine Bare Cylinder Head CH318A; Replacement 153cc Cast Iron 62cc for 1992-2003 Dodge, Jeep D150 (72-93), D250 (72-93), D350 (72-93), Ramcharger (72-93), W150 (72-93), W250 (72-93), W350 (72-93), Grand Wagoneer (72-93), B150 (71-94), B250