Need some help Guy's I installed ls9 injectors part# 81887 in my ls2 vett and wanted to clarify what the IFR is on this injector @ 58psi? Ive been surching through the forum and have found diffrint info ive read there IFR 51.7 @58psi, 52.48 @58psi and 56.43 @ 58psi which is it? Also need help with the injector offset table on my tune it's offset vs volt vs kpa vac and on 09 ZR1 stock tune its offset vs pressure delt (kpa) vs volts, i dont understand how to convert ZR1 data over my tune. if someone has injector data already converted over thats awsome but I really need to figure out how its done thanks.