I'm working on my friends Gto with a rear mount turbo. He has 72lb injectors that he bought. The person he bought them from said they are stock Gto injectors that were bored out/opened up. Is it possible to get the proper calibration done without a flow sheet? We are just trying to get his car running so he can drive it to get it properly tuned. Someone also told him his stock MAP sensor will work since he's only running 5-8psi. I told him he would need a 2bar MAP to get it SD tuned. Am I wrong or is it okay to run a 1 bar map sensor?

Thanks in advance!