So I am in the process of installing some Edelbrock Aluminum heads model #60329. Problem is that I am not sure if the pushrods i have will work with the application. THe text says that I may need to buy longer than stock pushrods, however, other text by Edelbrock says that 6.805" pushrods will work fine. I put the pushrods in as well as placed the rocker arms on the studs. The rocker arm seems like its coming into contact with the valve spring too close to the body of the rocker arm and not directly contacting the end of the rocker arm to the valve stem. I am running a cam with stock pistons and an Edelbrock cam with .448" lift and the valve(no need for roller rockers). I just need to know how to determine the correct size pushrods for this application. The recommended is 6.805" but as I have stated it seems too short.