Longoria's BBQ was ranked number three on D Magazine's Best BBQ in DFW list. The Texas BBQ Posse pulled into the gravel lot in Everman and headed to the back of the building to check out the smoker area, of course. Pitmaster David Longoria invited us in to check out the place, not even knowing we were on tour. Have to say I took an immediate liking to this place. David showed us the finer points of his family's cooking techniques, then gave us a VIP tour of his dad's "James Dean Room" before heading to the small but comfortable…