[jlaudio11]

There are alot of differences in a stock zl1 tune based on the hardware it's fitted with, specifically injectors and high pressure fuel pump, along with a difference in compression. I personally would put the original stock tune back on it. It will run alot better and fine if you're just in the shop. It will become an issue when you start getting into boost. That's also assuming you have the stock map sensor in it still. KingLT1 is the most active tuner on here in my opinion and might be able to help you out or Ted Jannetty of Jannetty racing would be another good choice that is on here.