well i have just got my self a 91 4 runner and i am having a problem with it back firing. it is all good if keep under 3000rmp but if reved higher and then when u back off to go for the next gear it back fires pretty bad.
the carbie had been rebuilt, has new pluges and leads, new fuel filter. i just redid the timing and set it to 0 with no vacume and then add the vacume line again and it went up to about 10.5 when the manual said it should be at 12, but i dont see that doing it. allso it has the 22r motor.
so if anyone could help out it would be great thanks
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1991 4 runner back firing
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