Car specs dragster 598 bbc , ati converter , powerglide trans . It takes about three seconds to get the converter up to 5200 when on trans brake and it doesnt want to go any higher. When i shift at 7600 it falls back to 6300 and thats about correct where i want it. My question is why wont the converter flash to 6300 when up on the brake? If it falls back to 6300 on shift you would think it would be able to go this high on trans brake.Even after i launch it takes about a second to hit the 6300 according to data logger.