First, i was running 18-20hg and a 22 psi spike leveling off at 16psi. Then this week i went to add a MBC. The MBC never did work for me so i went back to the stock setup using the BCS. remember the numbers i listed above were also with the stock BCS. Now that i have redone the connections back stock i am also running between 8-12 hg and suddenly i can't get more than 12 psi. Can someone tell me where to check for what. i have a meet at the track tomorrow and need this info. Please help. lol i'll even take the 22psi spike back the car has a dramatic difference now. Please if someone could help me fix this or tell me which line could be loose or was clogged before i changed it. Seriously i need it back stupid or not. Thanks for any help you may supply.