:: One of the ways to reduce that compression is the four valve…
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Title: One of the ways to reduce that compression is the four valve reliefs. The other way is the machining I perform around the outside of the piston. Ups don't tell anyone. Then they will know the secret.
One of the ways to reduce that compression is the four valve reliefs. The other way is the machining I perform around the outside of the piston. Ups don't tell anyone. Then they will know the secret.
