Blizzard's rolling rebuild of a 1303 1975

[Blizzard]

When I'm done with testing carburators and no longer need the AEM gauge and o2 sensor in the exhaust I will replace the CSP Python with the GPP exhaust.

Before I could install that exhaust I had to do some tedious but important mods. First I matched the inside opening of the copper gasket rings to the exhaust pipe.



Now all 4 gaskets have the same size as the exhaust pipe mating surface



On one of the exhaust pipes the mating surface was not completly flat.
On the picture below you can see it almost done, there is still some black marker visible.



And on one side the pipes were not perfectly parallel to each other so I spend half an hour doing this.
Just like Jeff often said on homebuild by Jeff on youtube
https://www.youtube.com/watch?v=jfPmTOin29w

MORE SANDING.. YAY!!.



I did a leak test with an aircompressor and some soapy water and it's leak free.