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Hey Guys,
Looking for some guidance here. I'm new to this and giving it my best shot. Helping my uncle with his '57 Chevy with a 2004 GTO LS1/4L460, headers, and cold air. Tune 1 was done by the guy...

Thanks for responding. I appreciate you help!

Hello,
I'm new to HP Tuners. I did search this , but seems like I can't find a definite answer. I have a 57 Chevy with a 2004 GTO LS1/4L460 . We had the harness modified to eliminate the...