Have a friend that has an 01 GT vert with the following... CAI, 75 mm intake and plenum, upgraded injectors, 4.10 gears, short throw shifter, and a tune from Bama. He's wanting to put more in it performance wise but doesn't know which way to go this past weekend ran a high 13 @ 99 mph. What does he need now? Looking at BBK tuned headers or and Intake manifold... If he goes intake, looking at the Edelbrock Victor series- does he need their fuel rails and plenum or can he use stock?