Piston Failure

yellow rose said
IDK but a leak down is better than a compression test. There is certainly oil on the plug. IDK why you are only running 32 total. I can't see the plug well enough to see the timing mark on the ground wire. Also, can't see the plug number, but it looks rich at idle and a bit closer at cruise. Don't know what that ignition system is either.

I'm running 32 because I was having problems with detonation under load and that was the most I felt safe with running. I think it was a combination of the cam, compression, and iron heads. The plugs are autolite 5224. The Fast ignition is a CD box, same as the msd stuff but made by comp/Fast. I work at comp cams so I got a pretty decent discount. I was still working on mixture tune, a wideband was gonna be the next purchase so I could dial it in. I'll try to pull all of the plugs tomorrow and take a better look and rerun the compression test and possibly a leak down. Definitely a lot of blow-by though.