Look inside the throttle plate area. It could be dirty and have a build-up of crud. Use carb cleaner and a rag to clean the throttle bore plate area. Also, clean any vacuum holes in the throttle bore.

You might conside removing the throttle off the manifold and cleaning it on the bench. Don't forget, use a new gasket.

__________________
Regards

Warren

Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor

Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL

ENTER > = (HP RPN)

Not part of the in-crowd since 1952.