Idle speed and tach

[drbarbara]

I have kind of the same problem. I have a "truck" ford 302 engine and I am having trouble adjusting the idling speed. What should be the correct procedure to adjust the idling speed. Should I put the boat in the water, start the engine and adjust it in neutral to idle at around 900 RPM and then try it in gear or should I start by adjusting it in gear and then hope it does not idle to fast in neutral.