By Paul Teetor            Two points, two (allegedly) clean blocks and 12 seconds. That’s how close the Mira Costa boys basketball team came to gaining a first-place tie with Culver City in a Bay League showdown Friday night. In the final 12 seconds, the Mustangs had 3 chances to tie or win the game and couldn’t cash in on any of them. But they walked off the Culver City High School court with their heads…