328: George Bush/Howard Baker - 50.8%
210: Lloyd Bentsen/Paul Tsongas - 45.3%
Ron Paul/Ed Clark - 3.0%
Others - 0.9%
Bentsen does about five percent better than expected, while Bush does about five percent worse than expected.
Bush would still win Texas. By then, it got Republican enough that Bush wins it, (plus Bentsen was generally perceived as being more moderate/conservative than he was) it kept reelecting Bentsen because of his seniority. I'd imagine enough (mostly rural) Texans vote on abortion alone to propel Bush on top.