Chuck,
I wasn't gonna answer this since it isn't a done deal, but couldn't resist! Here's where I am - first, average manifold heights from the Summit or Jeg's catalog (I forget which), or maybe the respective web sites:
Weiand Stealth: 6.0"
Edelbrock Torker II: 3.875"
Edelbrock Performer 460: 4.10"
Edelbrock Performer RPM: 5.48"
As you can see, the best street manifold, the Weiand Stealth, is 2-1/8" taller than the Torker.
My compromise is the Performer RPM at 1-5/8" taller, since it matches the ports on the aluminum Ford Racing heads OK.
I plan to increase the height of the scoop by 1-1/2" to accommodate the extra height of the manifold.
Like you I have a 514 and will use it mainly for the street. Ask me again in a couple of months how it works!
Tom