Good day all,
New user here! Glad to be a part of the community.
Just wanted to run something past you guys. Maybe I have a problem? I'm not sure what's normal honestly. On my 66' Oldsmobile Toronado with the 425 and original Quadrajet, when the engine is cold but still in a warm environment (let's say, 75-80 degrees) and I go to start it up I always hit the pedal once to set the choke fully closed and the high idle. Once it starts up, if I immediately bump the throttle after the start it comes completely off the high idle and goes right to the slow idle and tends to stall out. Once it's off the high idle, obviously there's no way for me to get it back on the high idle and it's a pain in the butt trying to keep it going.
This is a divorced choke 4MV (7036250) Rochester QJet with a thermostatic coil mounted on the intake as the choke pull off. If the car is first started and running on the high idle, I can manually flick the fast idle cam progressively down the notches (I think I counted 2 total not including the highest step) with my finger. However, if the car is just started and running on the fast idle, the second I open the throttle the fast idle cam comes completely off (choke butterfly seems to stay pretty well closed though, with a small gap) and goes right to the slow idle and tries to die.
