the right tranni fluid?

I've got a 74 dart swinger with a 225 slant six in it.. im assuming the tranni is a torque flite. Being new to the car I went to Lordco (parts chain in BC like NAPA ) and asked for the appropriate fluid. He gave me ATF +4, is this the correct fluid? It states on the label that it is NOT recommended for automatic transmissions where DEXRON 111 , DEXRON 11 E, DEXRON 11, DEXRON, MERCON or type F transmission fluid..

Really dont wanna cook a tranni for lack of education...:-k