Plug read, opinions needed
Guys, I spent all day on the dyno yesterday. 26 pulls total, lots of carb tuning. Not a mopar so don’t hate me. This is the big block Chevy for my boat, twin turbo, pump gas, low boost, blow through set up. I know how to read a plug, but I’m seeing something I’m not familiar with. On the very tip of the ground strap on 3 plugs I have a color change similar to the timing mark at the base, but at the end. What is the color change an indicator of?
Guys, I spent all day on the dyno yesterday. 26 pulls total, lots of carb tuning. Not a mopar so don’t hate me. This is the big block Chevy for my boat, twin turbo, pump gas, low boost, blow through set up. I know how to read a plug, but I’m seeing something I’m not familiar with. On the very tip of the ground strap on 3 plugs I have a color change similar to the timing mark at the base, but at the end. What is the color change an indicator of?