Building your own headers.

Rocket said
You can try Tubular Automotive in Mass. they have W2 and J head adapter plates they produce for the one header they make for A bodies.

I have also seen adapters for W2 heads on eBay.

Thank you for the info. I will call them and see what they say. I take it the adapter plates that Pittsburgracer posted. I will have to port them to fit my exhaust ports.