Yes it's throttle body. I was driving back home to Cincy from Cleveland yesterday. Cruise control a 79, suddenly a wrench and limp mode. Managed to get it to the shoulder, shut it down for a few, restarted and made it home with no issues. Went to the dealer this morning, in and out in about an hour. almost 17,000 miles. As soon as I told him the symptoms, the service guy just started nodding his head and said "probably throttle body".