258 4.0 Head Upgrade cam swap
I have a 76 258 4.2 that i am doing the 4.0 head swap on now i need to know what cam to use. Some have said the 4x4 medium comp cam but i also need to know what push rods, lifters, springs, ect to use. Some say the 258 rods will work but change out the springs ect. Some say it will all work but im worried about valve springs binding or bending a push rod...and what about valve lash.? Any help would be appreciated and no not all the engine shops know it all.