Hello, I just installed an AEM on my d15b1. To boot my fuel pump went out the day before so I changed the fool pump. and installed this gear, under light load even it drops vaccuum. I tried the stupid gear at 0 even sucks. Perhaps I got a bad fuel pump, instead of dropping the tank again i think im going to add an underhood inline pump. So my question is this. Any suggestions of setting on the AEM gear givin you have a true cam and a fresh build.