crank and rods for 340

Here is my combination. I used a cast mp crank,eagle h beam rods,ross pistons,in a 340 block. The reason why i used a cast crank is i have one of the very first kits you could buy.I used edelbrock ported heads, holley strip dominator intke,roller cam. It made 582 horses@6700rpm and 544 lbs torque@6000rpm. I have 14-1 comp. In a 3000lbs duster with me in it i run1031@129mph. I have over 300 passes on it with no problems. The only thing i did was cross drilled the mains and gotthe crank nitrited hardened. A cast crank will live at 600 horse for a long time i have proof but again the only reason i used a cast crank was the forge was not out and and i wanted to try this combination out. If you have the money buy a forge one but a cast will work with mods.