I actually spoke to a very good Edelbrock rep at the GNRS this past weekend, and he said that there's a good possibility of seeing a return of both Y-block and Nailhead (Buick) product offerings, consisting of 3x2 intakes and finned valve covers.He said they are currently looking at re-engineering the castings for todays processes. They won't be exactly the same, but very similar. There's apparently a big internal push to provide products to packaged their new "94" with.
May all be B.S. but he sounded very informed, at least.
BTW Mark, I have a 573 that I have plans for...but if you happen to know where a nice pair of Edelbrock valve covers are, I would trade straight, up, or down, and pay shipping for both of us. Just a thought.