Aviaid Makes some REALLy nice dry sump systems for the LS engines I would have loved to get one but they are to costly. I am not using the factory windage tray or the dry sump tank. I am also modifying the pan to help with the problems associated with the oil not getting to the pickup. For the price I got the takeoff system for and the upgrades I wont have a lot into this system. Another thing is the oil passages around the filter needed porting badly. Thanks for the tips!
As far as the shroud I disagree. If I was using something like the spal fans then yes allowing the natural air flow to pass the areas not in direct contact with the fans would work when the vehicle is at speed. The rest of the time it would not be as helpful. The fans I am using put out OVER twice what a good spal does. In addition unless the front of the car is sealed directing the air through the radiator it will take the path of least resistance, that would be in the fan intake or around the radiator. Pushers suck, it takes twice the fan to make them work because you loose the natural air flow, the key is using the whole heat exchanger.