Been running for 5 years without that on my Performer. No issues. yes make sure PCV is clear, but that much pressure would pop out PCV valve pretty fast you would think. it's just a rubber grommet.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
86 CJ7 258/Np435/D300/Waggy D44's