Mark Martin has a warning for everyone in NASCAR's Sprint Cup series: Look out for Jimmie Johnson. Johnson won his second pole in a row and third of the season Friday at Pocono Raceway, knocking Martin off the top spot in qualifying for the Sunoco Red Cross Pennsylvania 500.Coming off a second-place run at Chicago and a victory last week at Indianapolis, it appears Johnson has found his stride after a relatively slow start for the two-time reigning Cup champion. Martin turned a lap of 167.560 mph (269.662 kph) that looked like it probably would hold up for his first pole since 2001. But Johnson moved him to the outside of the front row for Sunday's race with a sizzling 168.215 (270.716). “It was a very smooth and comfortable lap,” said Johnson, who now has 16 career poles.
