MY 85 FJ60 W/HEADER,NO CAT CONVERTER,DE-SMOGED.
RUNS GREAT,STARTS GREAT BUT BACKFIRES LIKE HELL WHEN I LET OFF THE GAS AT ALMOST ANY SPEED(WORSE WITH SPEED)CARB. HAS BEEN REBUILT BY JIM CHENOWITH 1000 MILES AGO,TRUCK DID NOT BACKFIRE BEFORE WORK WAS DONE.ANY IDEAS?
RUNS GREAT,STARTS GREAT BUT BACKFIRES LIKE HELL WHEN I LET OFF THE GAS AT ALMOST ANY SPEED(WORSE WITH SPEED)CARB. HAS BEEN REBUILT BY JIM CHENOWITH 1000 MILES AGO,TRUCK DID NOT BACKFIRE BEFORE WORK WAS DONE.ANY IDEAS?