FiTech EFI Tuning Forum

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Ran great until I put in 1500cc injectors

Twin turbo 6.0 ls ran great until I put new injectors in, now it's super rich with black smoke everywhere, only on cam selection 1-3 but starts good and idles on cam 4 but when I give it throttle it dies, any help would be much appreciated,

What is the AFR reading?