Now i buy the zzp 2.8 pulley i am confused because everyone said that the smallest size for the 42.5 injectors are 2.9 and i want to know if i do a tune is going to be safe for the motor?

Please Help
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I ran a 2.8" pulley on my car for quite awhile without issues on the stage 2 tune, but after I learned a few things it would be highly suggested that you invest in a tune and 60# injectors.