|Carter BBS Fast Idle Adjustment|
Remove the thermostatic coil housing assembly, gasket and baffle plate. With throttle screw backed out, crack throttle valve and hold choke valve in fully closed position, then close the throttle. This will allow the fast idle cam to revolve to fast idle position. There should now be .022-.026" clearance (use the figure from your data specification sheet for your vehicle) between throttle valve and bore of carburetor (side opposite idle port). Adjust by bending the choke connector rod at lower angle.
1954 Dodge fast idle clearance: .022-.026"