problem is anything you use to adapt swings the pipe out further
you could weld a 3.5 flange to a 3" flange , clamp the 3 side to turbo and clamp the 3.5 to the huefman pipe but even just getting the adapter down to the minimum height to allow for both clamps moves the pipe out and creates major issues that you need to be able to weld to fix , and if you can weld then fix the pipe flange or the housing flange