Do the Edelbrock heads match those tall ports on the earlier manifold?
I was trying to remember. I think the 66 and up had a more rect. port. I
had some 66 GT heads port matched to a medium riser tunnel wedge man.
years ago. You may want to ask Edelbrock. I think they're medium riser
style. Dave or Denny should know.
good luck, Ron
btw...nice car