With or with out a hood scoop?

My viewpoint is if your Duster has the 340, then go with either the 340 hood scoops or the 340 hood decal. I cannot say I am a purest because my '71 Duster has a 360 and we all know there not installed in MOPAR cars until 1974. Because of that I changed out the original grill and installed a shark tooth grill which came with the 340 engine from 70-72. I guess what I am saying is I believe in adding any option which is authentic to what is in the car. What I do not like is when someone puts 340 or 360 decals/accessories on a Duster when they have either a slant 6 or 318 engine.