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Johnny Gray raced to his third victory of the season Sunday and moved back into the Funny Car points lead at the 25th annual NHRA Kansas Nationals. Shawn Langdon (Top Fuel) and Jeg Coughlin (Pro Stock) also were winners in their respective categories at the NHRA Mello Yello Drag Racing Series event. All three winners

Got questions? We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re taking on electrical gremlins and traction problems. K.M. • Danvers, MA Q: I own a 1972 Chevelle with a moderately built 350 and a four-speed. Recently, I installed a MSD Billet distributor, 6A ignition box, and coil. When I try