YORK – Lancaster, in dire need of a late spark, got a dash of offense to lift the unbeaten Bruins to a 28-16 win over York at the Cougars’ Pratt Field on Friday night.LHS senior running back Jamias Clark, who ran for 129 yards and two touchdowns, provided the game’s pivotal run with a determined 53-yard scamper to seal the 12-point win.Lancaster, up 21-0 at the break thanks to a stellar opening half, sputtered offensively in the second half and allowed the pesky Cougars to claw back in the game with a 16-point surge to make it 21-16.Yo