Car seemed to be missing and I ran a cylinder test where #4 came up as a problem. I pulled the plug and its all gummy.
No other codes turned up on my code reader.
See photo below of gummy #4 and a clean #3.
This plug was pulled after about 4500 miles of city driving, and after upgrades including GT-40 heads, Comp Cam studs, rocker arms and pushrods, Cobra Intake and 65mm TB.
What concerns would you take away from this?
Thanks for any advice.
View attachment 438909
No other codes turned up on my code reader.
See photo below of gummy #4 and a clean #3.
This plug was pulled after about 4500 miles of city driving, and after upgrades including GT-40 heads, Comp Cam studs, rocker arms and pushrods, Cobra Intake and 65mm TB.
What concerns would you take away from this?
Thanks for any advice.
View attachment 438909