Chuck Leeper Toxic old bastard Staff member Joined May 28, 2001 Dec 13, 2016 #1 turbo, piping, etc. http://ls1tech.com/forums/forced-in...-spring-opening-4-psi-backpressure-issue.html
turbo, piping, etc. http://ls1tech.com/forums/forced-in...-spring-opening-4-psi-backpressure-issue.html