Hey guys, I am having problem with fuel pressure. I have. 87 grand national. The car already had a hi flow fuel pump on it and a volt booster. The previous owner tapped into the fuel pump harness with a power wire and runs through the trunk and up to the front. I am not sure why or where this wire ends up. I installed a racetronix hot wire kit, 60 lbs fuel injectors, and a electric fuel pressure gauge. With the the key on, I get 0 fuel pressure. If I take off the gauge fitting at the end of the rail, and turn key on, fuel comes shooting out. But I still get nothing on the gauge. If I start it up, it will run really rough and the die. It also seems to be pulling a lot of vacuum. Anyways, I not sure why I have 0 fuel pressure. I forgot to add,I installed a TT chip for the 60 lbs injectors.