Here's the problem.... I just installed 1.7 rocker arms and the car suddenly runs terrible. I have the following upgrades: -30lb injectors -fuel pressure regulator (37psi) -190 lbhrs. High pressure fuel pump(brand new) -Mass Air meter (75mm) -Edlebrock RPM intake -Cold air intake -pulleys -3.73 gears -aluminum driveshaft -king cobra clutch -full exhaust(except for headers) Ok. Car ran great with the mods. listed above. Then i installed the Crane 1.7 rocker arms; followed the instructions and now it hesitates and shuts off at a stop. I thought it was the fuel pump however I just installed the one listed above and it still runs horrible. The car is always hesitant. Please help. What could be the problem???