CHARLOTTE, N.C. — NASCAR levied the largest combined fine on one team in series history Wednesday, hammering Hendrick Motorsports for modifying air-deflecting pieces last weekend at Phoenix Raceway. Hendrick was issued a combined $400,000 in fines — $100,000 to each of its four crew chiefs, along with four-race suspensions for the quartet — and docked the drivers 100 regular-season points and 10 playoffs points each. Although NASCAR has issued larger monetary fines and suspensions, the Hendrick penalties are the largest combined punishment for one organization. NASCAR’s winningest team said it would appeal. William Byron has won back-to-back races for Hendrick to give HMS two wins through the first four races…