340 rockerarms

Try swapping the position of the two rockers that do not line up. The intake and exhaust rockers have a slight offset. If memory serves, they are stamped I and E on the bottom of the rocker, on the pushrod side of the rocker shaft. Once you have the two rockers swapped, you can tell if they are going to line up once you have the rocker shaft bolts snug. If they line up when snugged down, torque the rocker shaft bolts from the center to the ends to 30 pounds in 10 pound increments. Hope this helps. ;)