I would agree with Henry and Travis. If you dip into the 9's you'll only make that one pass. Track officials will send you home until you have a certifiied cage or you slow the car down. How much power is the 540 makin'? If you want to see a four link set up, click on the camera by my name, or check out Blown Goats gallery, Vara4 is working on one, Pro60chevy is building a go fast chassis. I'm sure there are more.
Here is a thread that might help.
http://www.clubhotrod.com/forums/sho...threadid=12742

BTW: Vagas I think I posted chassis tubing size and thickness someplace. If you still need it let me know.