I just set the right timing on my mild 327 ci, @ 12 degree initial, +/- 36-37 degree @ 3500 RPM.
I didn't retuned the carb yet.
Since i set the timing, i notice the car is very hesitating under 2000 RPM, and impossible to cruise under 1500 RPM, like it is required in city traffic. In these situation i have to go out of gear and let it go on free wheel (idle).
when engine is cold, these hesitations are stronger. Like the first off idle cruise after starting is not regular at all!
Why is this?
In any other situation, the engine runs very nicely, with a strong response above 2000 RPM, and no hesitations under load.
The car starts very easely as well!
For info, i think about changing my vacuum source from ported to full manifold and see. (ported is the actual set up)
But i want you to advice first, so i don't try for nothing.
I don't think the carb may change something to that phenomenum.
Camaro 1968, propane 327ci, Big Brake, Hotchkis, T56