Both. Because the shaft is warn on the carb it sometimes sticks at redlights and idles a bit higher than actual idle. It has the vibration pretty bad at this time. I can punch the throttle and it causes the car to idle normally, and the vibration isn't bad. When I build rpm and I'm about to change gears, it's pretty bad and if I'm in 3rd gear on the highway it's can be bad until I shift into overdrive. In overdrive on the highway, it's not bad at all.
