Throttle Body

Hey does anyone know where I can find a how-to on porting my throttle body for my ls1? Thanks in advance

simple...

get a dye grinder or dremel and grind down the lip in front of the throttle blade.

make it as smooth and round as possible, and don't get too close to the blade. finish it off with sand paper to smooth it out.

or if you have access to a lathe you can put it in that and just turn down that lip, took me 45min in a machine shop