does anyone knows this header?

Hi,
I intend to buy a stainlles header to my 318 engine. I found this one in ebay (attached pictures). Do anyone know if it fits all right?
I'm worried about spaces betewen header and brake boostor spark plugs (drver side)

ebay seller says "[FONT=arial,verdana,helvetica,sans serif]Replaces factory manifolds and connects to OEM y-pipe"

any suggestion?
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