toomanymodz
Well-Known Member
- Joined
- Oct 14, 2009
- Messages
- 1,120
I pulled a plug. They are Autolite 103. Definite orange/brown coating for sure. While at the track, I experimented with more timing in 1st/2nd gears, up to 24 degrees and still no knock with 23psi.It leaves a small orange/brown residue they say is the burning of one of their main anti-knocking agents.