I put a triangulated 4 link under my 51 Dodge. I decided to go with a bunch more power and was thinking of going narrowed rear end so I can install a lot more tire. The 4 bar I have now is a pretty weak set up, but I do have a decent set of coil overs. My question is, has anyone run a regular 4 link, moly heim joints, drag style, on the street? I'm curious about noise and harshness. I've ran them in drag cars but noise wasn't a factor then. I've looked at several 4 bar set ups, but they look like there would be some deflection and a question on strength with the poly ends. What do you all think would be best with 650 to 700 HP? this will see some strip duty is why I'm concerned, I want it safe is my main priority.