CONCORD - From zMAX Dragway: A group of "pro testers" will occupy zMAX Dragway on Thursday, taxing their 1,300-horsepower machines in a series of violent marches down the Bellagio of drag strips.There will be no bailout for the NHRA’s top candidates in the Countdown to the Championship, which launches during the O’Reilly Auto Parts NHRA Nationals, Sept. 14-16 at zMAX Dragway.In preparation for...