I have a 2012 6.2L Silverado with a magnuson tvs 1900 at 8psi. The injectors that came with the sc are pink 0280156030 and the stock injectors are 12609749. Justin from black bear did a in person tune and said that the pink injectors were to small. that i should use the stock injectors. The pink injectors were at 97% during tuning but Justin said to be safe I should put the stock ones in it. He adjusted the tune to the injectors from a Denali with a 6.2L flex fuel he had done and told me to stay out of boost and put the stock ones in. Well I did but now i think im running leaner then I was with the pink ones. I know there is more hesitation that wasnt there befor but no pinging. my wb af is at 14.5-15.2 at cruise (usually closer to 15) and at acceleration out of boost. At wot in at 11.5. Theres no pinging Witch injectors flow more. From what if found ot the pink are 42lb at 58psi and so are the 12609749. Justin said my stock tune showed 55lb at 58psi. I did send Justin a txt but im sure hes on his way home and cant answer it now. What injectors should I be using?

 

Justin got back to me real quick and told me its doing just what it should untill it relearns for the stock injectors.