The BB Novas had the clutch spring connected to one of the exhaust manifold studs....I would assume BB Camaros would be the same...?? Our 70 black L78 had headers on it when we got it...the prior owner welded a small loop onto one of the header tubes in approx. the same position as the original manifold stud. Of course this is probably not an option for coated headers...but, it seemed to work fine for us. Maybe you could put some kind of band or clamp around the header tube with a spot to secure the spring
Nice job Big Mike....you are getting very high marks from Sammy