I am changing the intake gasket and broke the hard line that goes into the exhaust manifold. Id like to just git rid of all that stuff. but dont know what im in for. 93 lt1 150 shot cold air flowmaster nothing to trick yet.

 

93 has a different AIR and EGR system than the other years of the LT1. I thought there was an exhaust manifold connection on the driver's side, and the passenger side combined the AIR hose with the EGR tube that connects to #8 primary on the passenger side? On all the other years, there is a separate AIR line to the passenger side manifold. Which hard line did you break?

AIR helps heat the cats up on cold start, so they start to work faster. Then the pump shuts off. There's no problem with deleting it, other than increased emissions on cold start. But if you broke the line that merges with the EGR, its going to affect EGR as well.

 

The hard line that bolts on the exhaust manifold on the passenger side is the one I broke.The driverside goes to a hose that goes to the pump. That hard line goes to the back of the manifold next to the egr I figured I could plug the manifolds up but what to do with the pump? Im going to get headers soon.

 

The line you broke is the EGR riser tube, that supplies exhaust gas to the connection on the back of the intake manifold. You delete that by plugging the hole in the passenger side exhaust manifold, and the connection on the back of the manifold with blanking plates. SJMManufacturing makes some blanking plates. You may get a trouble codes and SES light for deleting the EGR. The OBD-I diagnostics aren't too sensitive.

Behind the manifold, there should also be another line from the AIR pump, through a check valve, that combines with the pipe for the EGR that you broke. If you have the back of the intake blocked off, and passenger exhaust manifold blocked off, all you should need to do is plug the connection on the driver's side manifold with an M22 oil drain plug.

As far as the pump, you can delete it if you want. Simply unplug the harness connector from the pump, and make sure there is still a good fuse in the AIR pump circuit. That prevents the ECM from setting a code, turning on the SES light, and turning on the fans full-time. There is a rubber hose that goes from the intake air ducting, after the filter, to the AIR pump. Remove that hose and plug the nipple on the air ducting with a 3/4" vacuum cap. You can either leave the pump and hoses where they are, or remove them. The 93 pump is different than all the other years (its bolted to the chassis, the later years its bolted to the engine). I don't know the details of how it comes off, but it shouldn't be that hard to figure out.

If your emissions inspection includes a "visual" check, they can fail you for the missing EGR and AIR components.