92 buick roadmaster 90.000 miles runs great then started missing when accelerated not a bad miss just a sputtering changed the fuel filter no help gas cap builds up preasure but ran with no gas cap no
changed the fuel filter no help gas cap builds up preasure when run for a few miles ran with no cap no help checked wires at night no arking i could see plugs and wire and dist cap all about 20000 miles check engine light not on