Engine flush... Yes or No???

new engines with fuel injection arent as sludgy as an old carb engine.If you have a sludged engine take it apart and clean it its way past due :) Having wrenched on both because it was my time when carb cars went out and FI came in I can say this is true,when you remove a valve cover from an old carb engine ther ewas more sludge than a Fuel injected Ford Windsor.