I - 20 From LA to Dallas and I - 30 From Texarkana to Dallas............
Try Off the Bone Barbecue, just off 20 in Ft Worth - the Mansfield Hwy exit. The brisket is very good, as are the green beans and fried okra. The barbecue sauce is sweet, but the meat is good enough that you don't need it.
Is LA Louisiana or Los Angeles? If the former, some folks like the barbecue at the country tavern in Kilgore, but I found it too dry and tasteless. I did not get a chance to check out Carter's in Longview.
If the latter, West of DFW, you might try Harold's Pit Bar-B-Q in Abilene
Harold's Pit Bar-B-Q
1305 Walnut St, Abilene, TX 79601
In Marshall, TX, about 4 miles off the interstate, open for lunch only -- P&J Lunchroom. Small, family run, five table soul food restaurant. Really good food, provided your cardiologist isn't looking over your shoulder. Three man courses every day and five or six vegetables. Friday is fried chicken and cat fish -- both superb.