Jul 13, 2013 #1 G GI Joe Senior Member Joined Apr 10, 2007 Posts 3,122 Reaction score 9 New never used Holley 4-9 psi regulator good for carburator nitrous system. The small silver one pictured here. $25 shipped in the USA Last edited: Jan 18, 2014
New never used Holley 4-9 psi regulator good for carburator nitrous system. The small silver one pictured here. $25 shipped in the USA
