Carbon buildup......
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Just what a motor needs, cylinder rings running dry metal to metal after that s**t seaped by, down to the bottom.
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fuel ratios because one head is clean and flowing well, and the other is still
dirty.jmo
hope that helps.
Just what a motor needs, cylinder rings running dry metal to metal after that s**t seaped by, down to the bottom.

Yeah....like thats real different from spraying it in the spark plug holes, or spraying it until it kills the motor and letting it sit overnite (like the DIRECTIONS say to do). LOL.
Seriously, if you clean one side by hand, might make sense to do the other one the same way. Otherwise you can end up with different left/right compression, and I don't think our PCM will like it too much.






