Ok so my daily driver is the beloved '86 gl wagon. 120K original miles. The stock hitachi original carb has run flawlessly since I've owned the car. I recently took the car where subaru's are at home on some pretty rough and rocky two-track desert roads. I banged her up a bit and lost two tires but happy to report I still have yet to get stuck in this car. Towards the evening I noticed that she was idling a little rough but she still ran out nicely down the freeway back home from wheeling. That is until I went to get off the freeway and she stayed pegged at very high rpm and I had to shut her off. When I started her up she still was pegged up to 4K rpm or so. I've always ran premium fuel and again never had a problem until now after roughing her up some. I've done little things like spray carb cleaner in the carb and check vaccuum lines and linkages but now I don't know where to continue troubleshooting? Is it possible something has rattled loose externally or is this a symptom of inner float or something? Should I just replace with a weber kit and if so which one? I'd appreciate any help, thoughts, comments and ideas. I love this car and need to get it back into daily driver status. Thanks in advance.
Sawtooth