Brooklyn’s Allen Griffin said he has dreamed about the game he had against St. John’s. But he didn’t get to do much dreaming Saturday night.

The former Robeson High star, who had about 30 friends and family in The Garden for yesterday’s Syracuse-St. John’s showdown, was so juiced for the game he didn’t fall asleep until 6 a.m.

Want to know what SportsCenter Allen Griffin watches? Saturday night he watched ESPN over and over and over again. Then he went out and played one of the games of his life, pouring in a career high 31 points in the Orangemen’s 93-91 double overtime win.

“This is where I grew up, this is where I dreamed of playing,” said Griffin. “This is one of my dreams.”

Griffin has had his share of nightmares, such as the entire 1999-2000 season. He went from being a starter as a sophomore to a benchwarmer as a junior behind Jason Hart.

“I told him last year, ‘I know this is tough. I can’t give you an easy answer. But if you hang in there, next year will be your year,” said Syracuse coach Jim Boeheim, whose word is as good as Orange gold. “You’ll play all the time. You’ll have the ball. You’ll have your opportunities.”

Griffin was the only player on either team to go the whole 50 minutes. He got an earful of trash talking from St. John’s freshman center Kyle Cuffe, who opened the first overtime by swatting a Griffin layup attempt. Griffin answered by scoring all eight of Syracuse’s points in the first overtime, hitting a driving layup, a 3 and 3-of-4 foul shots.

He got an earful of smack in the second overtime from Omar Cook, after the St. John’s point guard buried a 3 over Griffin to cut Syracuse’s lead to 88-86. Griffin responded by hitting 9-of-10 free throws.

After the game, Griffin and Cook, whose families have been long-time friends, embraced at the top of the key at the St. John’s basket. Griffin did virtually all of the talking, finally rubbing Cook’s head before heading for the CBS television cameras.

“I just told him to hold his head high and be smart in the future,” said Griffin. “You can’t keep talking to opponents because the refs see that and they’re not going to give you anything.”

“We were just talking about how he turned his whole career around this year,” said Cook. “Basically he told me some things to help me with my career.”

Cook should heed Griffin’s words. The Syracuse senior posted just the eighth triple-double in Big East Conference play when he scored 14 points, dished out 11 assists and grabbed a career-high 10 rebounds in his final home game on Feb. 27.

Yesterday he converted 18-of-22 foul shots. Cook scored 22 points and he had nine assists, but Griffin hounded him into nine turnovers.

“It was a tough game to be real patient,” said Cook. “He shot 22 free throws. He could tell me that [not to trash talk] right now. I don’t think they [the refs] did a right job.”

Griffin did a right job. He did a dream job.