Heres a track proven combination for ya'..
1. '70 340 block 30 over, line honed and decked.
2. mopar cast 4" crank
3.Eagle sir rods
4.Diamond flattop pistons 10.9 to 1 comp.
5.Edelbrock heads with mild "street" port work.
6.Lunati "voodoo" .533/.552 hyd. cam.
7.Edelbrock air gap intake(port matched).
8.Quick fuel 850 carb.
this combo ran 11.0's @120 in a "street" car,with full interior and through a full exhaust,and cranked out 520 h.p. on the dyno..i would'nt suggest the sirs rod if your going to make this much power or more,my next set of rods when the "new" and improved stroker goes back together is getting billet rods..:-D:-D