Jake makes some great points + a lot of original 1s were cut and modified to where you may never get them to work for you. I have an ss dart clone which is pretty true to the original 1s and I would love to have the original looking crossram but cost keeps me from doing it + possible driving issues with it ( as the Mopar 1 works ,fine for me as is). I cut the area out under the scoop and modified a dual quad air cleaner to work with my setup and the car drives great (I put about 1500 miles a yr on it going to cruise ins and car shows). I also used the spacers between the k member and frame.