Sorry for the delay in responding, a friend and I got my 302 running after being rebuilt. I paid to have the manifolds surfaced and after running them one is only good for a boat anchor. I will call Tom's to see how long before they have them back in stock, and text John, his number listed above. I'm still toying with Hooker 6909 headers. Brand new but mounting them might require a lot more effort. I still may chase down a used manifold but not sure if another 40 to 50 year old manifold won't have cracks as well. Thanks for helping. John B