PVC breathers on valve covers
The check valves on the header draw tubes will not allow that. My 3" X-pipe system with flow masters is so efficient there is no back pressure. However not available in all states, prices may vary see store for details.....
The check valves on the header draw tubes will not allow that. My 3" X-pipe system with flow masters is so efficient there is no back pressure. However not available in all states, prices may vary see store for details.....