Ol 22r is drinking some gas! 4 gals only get me 40miles. Iv changed the carb. Gas filter and fuel pump. There's no leaks. What else could do this?
Smoke? run bad? fouling sparkplugs?... you mentioned carb... floats inside sticking? carbs choke stuck wide open?
If it has an o2 sensor it need to be replaced if not ranging mV from 200-800 average of 450 feed back carbs will keep computer in open loop mode (rich) gettin info from sensor outout if sensors are also bad then vehicle is defaulted to rich condition