Engine tunes up are cheap in 454s. Cap, rotor ($25) , plugs ($1 ea), oil filter, oil ($25), thermostat ($6)....takes about a hour to replace and time.
No biggie.
I get a consistant 7.5 - 8 mpg plus in our 345 when towing our Beattle. I keep it tuned, replaced the ignition (to stock) added headers, 2.5", H pipe, rebuilt carb. I also run regular pump gas.
I think the biggest thing I do is keep it between 55 and 65 mph when travelling.
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Steven Webster
1986 Airstream 345 Classic Motorhome
AIR 1760
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