None in Dallas proper, but I fly at the North Dallas RC club field in Denton. 600' paved runway
http://www.ndrcc.com
And there are several guys that fly jets off of Benbrook's 400' runway.
I don't have a link for that club, but I'm sure one of them will chime in soon.
Once or twice a month the jet guys from all over Texas will meet at the HOTMAC field in Waco too.