Good ole General Motors, always thinking.. Poor fuel quality in the early 80's?? No problem! Let's put a bypass valve in the pickup screen in the tank.. When it plugs, fuel can still make it's way to the substandard fuel filter we installed...I'm glad I upgraded filters.. Now to get the tank clean again.. There's a baffle in there, I think that's where the remaining goo lies...
TCC?
Not quite, he needs the Buick Olds Pontiac bellhousing pattern, so no 700R.200R4 do OK in Grand Nationals that run 10s, they can do fine behind a 5.7.TCC runs through a brake switch, and I think a high gear pressure switch on the valve body.I forget what year you got, but if it has an ALCL, there is a wire for TCC command state.