ZL1 knock retard stock tune
I just downloaded Hp tuners and got the mpvi2. My car has a elite carbon air intake and a Katech ported 87mm throttle body running the stock tune. I was getting knock retard in third gear pulls of about 4-5deg just at about 6000rpm and it declines the retard till 6350 and once at around 3500rpm for .7deg.
If I did a pull in second gear the car had zero knock retard for 3 straight pulls. Is there something I look into on this or be worried about. I haven’t done any changes to the tune yet but am thinking that it’d be best. I assume my intake and throttle body has leaned it out too much For the longer gears?
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