So yesterday I hooked the Z up to a friends scanner and pulled some info up to find out what you guys have for me here. I don't understand what most of this info means so any help would be great. Just want to make sure everything is up to par to figure out what the issue is.
Car is a 1994 Z28 Auto LT1. Known problem is car has a blown out driver side exhaust manifold gasket, and I believe there to be a fueling issue of some sort but don't know where exactly. Car was warmed up before scanner was attached if it makes a difference.

TPS 0.57 V. At idle
Idle flutters between 638 and 683
IAC. 22
IPW Bank1 3.10 ms
IPW Bank2 2.73 ms
What does knock sensor open mean?
Then says KS ok off throttle
Loop stat closed
MAF 6.38-6.54 g/s idle
MAP 33 kpa
MAP volts 1.21-1.25V idle
Spark advance goes between 18* and 21* at idle

 

Here is some help in understanding scanner data.