The motor is in my 55 fairlane so no pollution devices are on the motor,the 5.0 mustang set likes the D7TE truck heads but a local junkyard has a 69 or 70 galaxie with a 351 so I am going to look at it. I am thinking about the edelbrock total power package that has heads,cam and intake since the nimrod that built the motor put in a 302 cam,putting hardened seats in early heads will probably be chaeper then aluminum heads but I am going to look into the cost before buying early heads. Jeff