My truck has 2 Isspro gages mounted but not installed 1 is pryo the other says manifold pressure. Someone replied to an earlier thread with a link to help install and I saw in there besides manifold pressure they have a boost gage. I got to thinking what is the diff? I was under the impression that maniflod pressure was boost am I wrong or just tupid for not knowing all the slang? I really appreciate all the help you guys have been
SKINNERBOY
2001 2500 5-speed mia silencer ring 2 gages not hooked up yet

 

intake manifold pressure is the boost pressure. same diff