Fellow Ford drivers,
I have a Carter YFA carburetor on my 250 engine. There are 2 screws for idle adjustment with 1 screw resting on the idle cam. There is also a throttle position solenoid on the side of the carburetor. Is the tps adjusted by itself for the fast idle or is the idle cam screw adjusted to get close to the desired idle speed - 600 RPM- and then the tps adjusted to the final RPM speed? I know the fast idle is set while the car is in drive. If the tps alone is adjusted for the fast idle is the idle cam screw adjusted for the low idle (curb?) when the car is in neutral? I understand that the throttle position solenoid should be unplugged.
Thank you