Originally Posted by MARTINSR
I always call it a ST400 because I'm a Buick nut.
Like the factory chrome wheels of that time, they aren't "Rally wheel" (I'll punch you in the throat
) They are "Sport Wheels" or "Road wheels".
The 64 ST400 also didn't have the switch pitch converter that the 65 and later had which has a variable stall speed controled by a simple 12 volts to it raising the stall by about 500 RPM. It was controled by a micro switch on the throttle linkage at the carb. The idea being when you have your foot off the gas at a light the stall went up so the car wouldn't be "pulling".
The SP also had a two prong connecter, top terminal for the SP, bottom terminal was for the electric kickdown. Switch for that was at the throttle pedal.
I would probably have just ignored it except when I look at my Dad's handwritten notes and see that he has written something, I tend to believe him. Not that he didn't make some mistakes- who hasn't? But he was a BOP guy (especially P) and he knew his stuff. The last car he owned before he died was a '69 Impala SS 427. Now, IT had a TH400!