Help with Edelbrock 1406 install

[jtinpdx]

Hi All,
I have the 350 HO Turn Key crate engine from GM. It came with a Holley carb that was installed by the shop. I switched it out to an Edelbrock but I'm not sure I have the vacuum lines set up properly. The engine came with an HEI distributor, which I can't find the part number for so I don't know what advance that's configured with.

I currently have a vaccum line from the transmission going into the left side vacuum port on the Edelbrock. That might be wrong. And I have the front central port connected to the brake booster. That's right I think.

But the Holley had a hose running from the manifold. I have that currently plugged. Truck runs now. Not sure it's running optimally. Please see pics below. Any help would be much appreciated!

Thanks,
Jeff