On my '56 gmc 270 ci six, the heat riser spring is gone and the weight is in the down position- does that mean the valve is open?


Well, my time went so quickly,
I went lickety-splitly
Out to my ol' 55.
As I pulled away slowly,
Feelin' so holy,
God knows, I was feelin' alive..... Tom Waits, Ol' 55