1995 chevy 1500 4x4 350 motor
Hi I have a 1995 chevy truck starts up
perfect. And idles like normal but when I
turn the headlights on it's start to idle
down a little. But when you put it in gear
reverse through D 3 2 1 when puting in
some gas it seems like it something is
clogged. Pushing the gas peddle down to
the metal it runs good but in fast speed. I
have change fuel filter, cap and rotor.
Sparks and wire looks good, pcv. I need
help in thinking if it the egr or Iac please
need help