About 6 months ago I rebuilt my 1998 12valve 5speed dually haven't been doing to much towing but I have been noticeing it's heating up very quickly when just going up a hill on exhaust manifold and also I think the turbo is possible to small because going down the freeway I'm getting about 7pounds of boost just coasting at 100km/h just wondering if any of you have some thoughts for upgrades right now it's getting about 400hp 650fpt

 

Fill out your signature and let us know how its built, ya know, mods and such. Its pretty hard to make a diagnosis or educated guess without further info.