This is a rotisserie brought back auto, mildly customized Super road efficiency. 654 hp on pump gas! Really, really fast. Engine professionally developed by Muscular tissue Motors. Trans skillfully built by Rick - View more at: http://www.cacars.com/Car//Plymouth/GTX/1968_Plymouth_GTX_for_sale_1006854.html#sthash.31LoyhTL.dpuf.