manifold studs

I have a 225 slant 6 in my 71 dodge dart, I noticed it had an exhaust leak at the manifold, I then noticed there was a stud missing (broke) and I am wanting to replace all the studs. Is that a good idea with one broke should I just see what happens and try to get away with replacing just the one? I have all new studs for it but everyone I know has said to just replace the 1. I was also told to get a new head for it if it gives me trouble. Could someone give me some advice? thanks
Author: admin