For tuning. There is no body around here I trust.
I park my Z from late Nov, early Dec to late March. If the weather is cold. I will put a couple pieces of duct tape or my aluminum block off plate on the oil cooler.
I did my own port matching. No one else was doing it at the time. Now there is a couple of people doing it. I matched about 1 inch into the ports. I eliminated the steps. Nothing major. Just cleaned up the ports. When I did it. All the pictures I took got corrupted during transfer from camera to computer.
That boat load also included LTH, cbe and cai.
I retired from the power plant in Masontown Pa in 2016. It was Duke Energy. Duke sold it to Dynegy in 2015. So I retired from both Duke and Dynegy. I been there still construction in 2002.