This is a '77 350 - I'm keeping it stock & prepping it to put into my '81 Grand Prix, in place of the V6. I have questions on a few things: -what's the green circled port for? -what's the red circled plate called... choke stove, something else? That's not the correct carb in the pic, but I'm getting the correct one & my part is missing the tube to the carb choke. I need to fix or replace this. -the yellow arrow points to a switch in the back of the driver side head. Is this a "blower thermal delay switch"? If so, I won't use this, right? Thanks!
Green circle is probably for vacuum modulator for Turbo 350. Red circle is hot air for choke coil. The yellow arrow pointing to the “switch” on the back of the left head could be for the minimum temp switch to allow low speed blower OR I know on the 455’s that was a metal temp switch, it would turn on the “STOP ENGINE” lamp on the big cars with 455’s if the head got too hot from lean mixtures and retarded ignition timing they started going with in ‘73
