Stop in for a cup of coffee

I'm struggling with the shape of the Edelbrock versus the Holley and the angle from the back of the block to the attachment point. The Holley is easy but it won't fit on the cast iron intake

I think it would have originally been a Carter 4120s?
Even if not going 4spd as mentioned, a manual valve body cures the kickdown issues also and makes it much more funner