Ryan did my head gaskets and heads 2 years ago, my 6.0 never ran bett... read more Ryan did my head gaskets and heads 2 years ago, my 6.0 never ran better. This past week i had him put 155cc fuel injectors in w a RCD HPOP and an SCT X4 tuner, let's just say my truck runs BETTER THAN NEW! -Chad Leonard