Manual Chokes
Carbeurators
Flooding the aforementioned carbeurator
Having to depress the pedal once to the floor to engage the choke.
Chokes that never seemed to work.
Pumping the gas when you try to start the car in order to squirt a bit of fuel down the carb.
Flipping the lid!! (now there's a blast from the past.) My dad's 77 Monte Carlo had a 305 2 barrel carb (now there's another expression you won't hear anymore either) that produced 145 HP. That's remarkably low by today's standards. I used to drive off in it, go around the corner, open the hood and flip the lid. Made that car sound like it was producing 445 HP.
Having to jam a screwdriver down the carb in order to open the butterfly valve in order to get the damn car to start.
Having the car not start on a wet mornnig (Ford)
Glass botles under the hood to hold spare Windshield washer fluid.
Vinyl seats were AN OPTION.
Blowers for rear window defrosters (also an option)
Hell, just about everything was an option in the 70's. Colour matching seat belts were an option I remember. My parent's 64 strato chief didn't even come with a radio!
Regular incandescent head lights.
High beam switches on the floor
A "cold" light that was green that came on when you first started the car for some reason.
Hubcaps that just covered the lug nuts
Gasoline Heaters (in the old VW Beatles) that were an option.
Those little triangular shaped vent windows on the front doors that had a separate handle.