Just realized the vortec/tbi setup in my truck has a vortec block, with a TBI water pump... Haven't fired it yet. Here's to hoping the bypass hole on the water pump doesn't leak....
Truck is a 1995 C1500 (originally 5.0, 5 speed) currently in the process of finishing up a Vortec/Tbi swap and buttoning up loose ends. This truck still has the ESC Module (secondary spark control module) that was originally mounted on the passenger side of the intake manifold. It also has the...
Truck is a 1995 5.0 NV3500. It shakes from about 750-1100rpm, also has noticeable vibration above 3k rpms. Truck also runs noticeably rich (black smoke when free revving.)
Throttle body has been rebuilt (just put in a 14psi spring and pod spacer today)
Injector spray pattern looks perfect.
CTS...