IMO, roller rockers just insure the ratio is right and your getting all of your lift. There stronger than stock.
OE rockers are fine for low spring pressure cams.
72 block probably as good as any block but i did hear the '70 blocks had the highest nickel content.
you can build it any way you want but street and race are very different builds.
I don't want a combo build . I should have made myself more clear. A good street engine . A 340 with some pop but I can run it on the freeway. I have a 68 dart 470 stroker . Not freeway friendly.
