PUUURs Like a kitten at Idle. Runs like a 3 legged dog whenever some load is aplied. Between 2200-2600 rpm the engine seems to bog/not fire, after 2600 rpms the engine runs ok,,,,but when I get on it kinda heavy ( like getting on the highway at 3500 rpms) itll do the same thing it was doing at 2200-2600 rpms,,,,,kinda bog down a little bit-I see it in the tach and feel it in the seat.

while replacing my injectors last night I noticed that a vacuum hose coming off the charcoal container was cut all the way through, it looks like it had been routed behind the alternator. I looked at the autozone vaccum diagram and it didnt help. All it showed for the hose was a dotted line going to nowhere. Im grasping for straws gentlemen. Ive relpaced my fuel filter, plugs, wires, cap, rotor, injectors, tps, egr, O2, and my car is still running like a turd.

91 Z28, 5.7, TPI

 

The hose connects to the throttle body. If it's the little hose I believe it's on the bottom left, if it's the big hose it's on the right side behind the IAC.