well guys i figured it times to start this, my motor is leaving a huge oil spot in my garage where it has been parked for 3 months...i have acess to a 351w block older like 69..maybe 70 ...my question is i plan on keeping it efi since the car is equiped with it already...do i need a efi block? next question will a 302 intake bolt up to a 351 block? any guidelines apreciated...im leaning towards the 408 kit unless someone can convince me otherwise.