moving a master cylinder to the left to clear valve cover?

Need some extra room under the hood of the gasser?
I haven't done it to an A-body without the block.
Every car Ive built that is older than 1950 seemed to need the master cyl relocated.
Most times welding in a flat mounting section and a bit of 1" angle iron bracing on the inside to keep the firewall from flexing/cracking. Nice to be able to stand on it when you need to.