So I just bought a used 22 Silverado RST 6.2L with 10,000 miles after driving a 13 Silverado LT 5.3L for 230,000 miles. The 13 had afm lifter failure twice on #4 cylinder in 230,000 miles and I decided that was enough. I had done some research on the 6.2L and decided to give it a shot. I am considering an afm/dfm tuner and would like some input from folks that have tried them, whether good or bad news I'd like to hear from you. Also looking for a tuner to use on this 6.2L, if anyone could recommend one that will adjust shift points, throttle response and fuel tuning.
