Building a beast...doing a 391

[XfireZ51]

Don’t understand why its like pulling hen’s teeth with some of these people to get a digital file of ur runs sometimes. I do have a Zeitronix ZT-2 WB installed permanently in my car. I know Marc brings his own WB when tuning because u just don’t know what tailpipe the shop’s sniffer has been in and there’s reason to doubt their accuracy.