in Need of a downpipe pic w/ flange and gasket

[boucher racing]

Hello all,

I am finishing up a GN T3 turbo project on a Chevy inline 250. I am getting ready to fab up the down pipe and am stuck. I need a picture of a factory flange and donut gasket. I have the factory donut gasket, a mandrel 2.5" pipe. I just need a 2 bolt flange and to secure it. I cannot figure out which way the donut gasket goes and to flare the end of the downpipe or not.

Thanks

Shad in Nashville