In order to finish riveting the forward section, I needed to remove the engine mount. Once I had that off, I was able to finish riveting the forward section ribs to the firewall. I was also able to bolt the manifold to the firewall. I riveted all of the holes save the third from the top. This hole was enlarged to #12 to accept an AN3-5A bolt. I temporarily bolted the manifold in place and used it to mark the location for the second bolt hole. I drilled it out to #12 and bolted the manifold in place.
