[f/bird]

What's the verdict on R A cast headers ? I have an exhaust leak on my 76 f/bird w/350 eng. and it sounds like the manifold area on dr/side . I'll be doing the 2 to 4 brl swap soon along w/cam and t/chain .so I thought this may be as good of time as ever to put some headers on also . From what I gather these R A's are about the most likly to fit and not leak ? Any comments ? Thanks