Working on improving the horrible gas economy of this 1984 Wagon. I've cleaned the throttle body and flame trap. This vehicle had a relatively new plastic Bosch AMM in it when I bought it, but I see that the 83-84's require an aluminum housing. There is a very pronounced revving when idling once engine is heated up. Frooom..........frooom.........froooom.......etc. The vehicle is getting very poor MPG (around 8). Any feedback would be great, thanks.
Also thanks for all the help here. So grateful for it.
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