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Message: [QUOTE="Kowboy, post: 1561717, member: 29363"] Peroni, I have a SXE 363/68/.83 gated. I am at about 3000' in elevation, and wander to 8000+. I am running a ZF6 and 3.55 gears. I had the .91 turbine housing on the 363, it was much better then the D66 turbo it replaced, but, still did not clean up the 160/80 injectors on a hot tune unless you were easing into it. Once RPM's were above 1800 it was much better, but you still had to ease into it. I could run a lower tune and have 0 smoke, but I prefer to have a bit more power then the heavy tow tune offers. But still to Smokey for my preference. I just recently installed the .83 gated housing. I have only towed about 6000 lbs, boost comes on sooner, exhaust temps are lower, mileage is up .5 to 1 mpg. I can run in the hot tune and have no issues with temps when towing. I have not towed the toy-hauler yet but I believe that the .83 housing is far better then the .91 for my driving style. I am sure that some people will not agree with me, and say a 363/68 is a small turbo for the 7.3, and that the .83 is to restrictive. I think it is a great match, power, performance, throttle response, have all improved a great deal. Wish I had known about the gated .83 turbine housing sooner. Be aware that the waste gate actuator will not fit in its current location, it will interfere with the intake plenums ( I am running RR 3" plenums). I am working on a mount and linkage to mount it up out of the way. I have seen some of the machining that you have done and you should have 0 issues with a minor mod like this. Also I prefer to operate my truck in the 1500 to 2000 range most of the time, but when I am loaded heavy it will see the 2500+ as I am going through the gears. So your 1500 to 2500 range would be ideal for the 363/68. I am sure that I have left out a few things, if you have any questions please ask and I will do my best to answer. [/QUOTE]