Help Junkyard coil for HEI distributor?

Those connections are the standard Chevy/GM ecore style that the 7 pin modules use.
You should be able to find those all over the place on 98-2006 or so Chev and GM V6 and V8 trucks.

The outside of yours has been dressed up a little, so they look slightly different but exactly the same thing with different mounting.
They will plug right in just like yours.

P.S. Is that your tank vent right under it? :D