Back when i was looking at head choice for my El Camino i did a litte research on these. I ended up getting some Edlebrocks for a good deal but, the Dart heads were pretty good, they flow well and i think they come with 2.02 / 1.60 valves.
The only downside to them is that they are cast iron. hard to port and heavy. unlike aluminum

youd be happy with them.