magnum with 340 exhaust manifold exhaust leak

Yup i have them on my slant six work great! they are pretty thick and would of helped the clear the rubbing on the head. they would of saved me some time at least i know for the next time! Thanks
I had a heck of a hiss on drivers side manifold . It was tightened to the point I was afraid of snapping studs. I heard about remflex and bought a set . I torqued to specks , haven't heard anything since , its been two years.