Looking good.
I love my Langdon headers. You might have to trim the ears on your intake and grind down the spreaders a bit. My Offy intake has thinner flanges than the headers and interfered. A little trimming did the trick. Also had to trim for the temp sensor.
Here in the states we have a rattle can ceramic header coating you can use to touch up any trimmed pieces. VHT makes it. Works well.
