NO SPRINGS REQUIRED. WHAT IS THE BEST CAM FOR MY 5.3L LS SWAP? HOW CAN I MAKE MORE POWER FROM MY JUNKYARD LS. HOW MUCH POWER IS A CAM SWAP WORTH? CAN I SWAP CAMS WITHOUT SWAPPING SPRINGS? WHICH TRUCK NORRIS CAM MAKES MORE POWER, THE .500LIFT OR THE .550LIFT? WHAT CAM SHOULD I PICK FOR MY 5.3L? CHECK OUT THIS VIDEO WHERE I COMPARED THE STOCK L33 5.3L CAM TO A (.500LIFT) TRUCK NORRIS NSR TO THE REGULAR (.550LIFT) TRUCK NORRIS TO THE HOT ROD TO THE RED HOT CAM ON THE ALUMINUM 5.3L. I ALSO COMPARED THE BIGGER HOT ROD AND RED HOT CAMS ON A WILDER 5.3L EQUIPPED WITH A FAST INTAKE AND FULLY PORTED TFS 220 HEADS. DID THE WILDER COMBO CHANGE THE RESULTS?