Odell, I have the same pump I believe. Leo put me on this one after we went to the boneyard when I was up their last time. Came off a 90's Caprice Police car i believe. Dwayne aka Big Daddy is supposed to be sending me the breathers and grommets to put it on. Soon as I get that I can bolt this thing back together and take it to the dyno to tune it....Apparently you have to remove some type of internal check valve to get the pump to flow more air.....Hope Dwayne includes idiot proof directions : )