Does anyone have suggustions as to how to set up this part of the motor. The zz4 appears to small of holes in the valve covers for most of the push in breathers that are being sold. Any help would be appreciated. smile.gif

Generally, the actual holes in the valve covers themselves are all 1.25".
The rubber grommet determines the breather/pcv size. They're available in two different ID's.

Thanks Bill, I took out the rubber gromment that cam in the motor and measured the diameter and it was like 1 1/8 inch. It appeared to be odd. Do you recommend a certain brand and style of push in breather?