Big Block Engine Builds

Thanks for the help moper. It's going in a 66 Dart GT. I want to be able to drive it on pump gas, so that's kind of a limiting factor. I figure the weight will probably be around 3,100-3,200 with the 8 pt bar and frame connectors. I'm leaning towards ported eddy heads. It'll have a new 4340 forged crank. On a .020 over block the CI will end up at 468. I'll probably go with main studs. Once I start building it, the budget will determine if I go with a solid roller, or flat tappet. Do you know of a good solid flat tappet cams that will work well with ~10.5 compression and eddy heads? I might even put a 4.15 crank in her for 500 CI. I just don't know if eddy heads can support that many cubes. What do ya think?