I ran through the pages on PF reference and assuming I was not careless in checking (I dont think I was) Dallas has only scored 30 points in all 3 of their first 3 games one time in their history. Oddly it was the losing season of 1986 (7 and 9 record) and they actually scored 30+ in their first 4 that year. Now they have been close to doing it many other times. In 1966 and 1968 they averaged over 40+ in their first three games but each time had 1 game where they barely missed the 30 point mark. It's a safe bet they tie the 1986 record Sunday. Weirder things have happened though.