Correct ignition coil bracket for '70 L6?

[jcwren]

(one of the things about buying a not-quite complete truck is that you don't know what it's SUPPOSED to look like... So yeah, lots of questions).

I need a coil bracket for my '70 250. I bought one from Rockauto, and it looks the same as every other one I've seen at Autozone, Advanced, O'Reilly's, etc (first attachment).

The problem is there's no way to mount this to the head that uses both bracket holes. On the head, I have two holes in front of the #1 cylinder, one at the top and one at the bottom. There's another set of holes between #2 and #3.

Looking at pictures in the "Post your pics" thread, the coil brackets I see look more like a Ford one (second attachment).

So how is it *supposed* to be mounted, and if this isn't the right bracket, where would I find one that's correct?

Thanks!