i have asked a few questions about my carb and you guys were a big help i have a 3 speed automatioc the gears on the colum read P R N D 2 1 and ive noticed i have the pedal close to the floor at 60mph on the highway is that all the gears i was wondiring if that is true should i have overdrive gear if i dont is it posible to put a shift kit or somthing if not its ok i am just wondiring if thats all the faster it will go

 

They didn't start using overdrive trannys until the '80's. You could always swap one in, a common upgrade.