Been trying to figure out a carbon fouling plug issue mainly on #4 and a bit on #8. All other plugs look fine. First will fill everyone in on what the engine is.
Block: 408w (351w stroker)
Heads: AFR 220
Intake: Super Vic EFI
Cam: Compcams XFI 248 hr
Ecu: PiMP (microsqirt basically)
I'll stop...
