No anti roll bar. Don Davis cars are essentially built to run Super Gas. We've tweak the susspion to run flat out and are trying to fine tune it. Watched a lot of Super Stockers that pull the wheels up with no chassis flex. When we got the car we guessed it was set up right and nearly put it on its bumper. We adjusted the ic down which helped out a bunch. I have one more hole left in the front of the 4-link to adjust to. I guess I could try it and find out what happens.