I'm unsure I would change the rods YET. I like to zero in on the springs first and you need the 5hg springs. I believe they are orange. I say the springs first, because if you make more than one change at the time, you don't know for sure what improved it or made it worse. Since we now KNOW it needs the 5hg springs, that's what I would do first. The closer you get to "right" the more vacuum you will read on the gauge. If you make a "wrong" decision, you will see that as well. But the 5hg springs are the "right" first step.
