i have a z7 kit with 62.1 aai 65lb injectors and a few other supporting mod fprw vb on stock motor never been cracked i pulled 12.2 at 114mph thats with the pcm zzp sent with the kit i dont have a tuner (not tuned vary well) the bov is a tial knock off i replaced with a real tial if i had it to do again i wouldnt get their innercooler kit its not worth 1100 its just an ebay innercooler anyway so i would just order it off ebay fore 350