high compression

[01_300ex]

what would i get out of a high compression piston 11:1(top end, bottom end) on a 300ex.

[nakomis0]

You would get power all over, and need to run higher octane gas.

[kat400ex]

JE 10-8 to 1 you can run pump gas.....great piston oil rings are huge on it.....if you wanted to run race gas you can but dont have too........huge power difference