I have a 85 bronco with a 351 h.o and i was thinking about putting a hood scoop on it that mesured 12 inches wide by 12 inches long and a 2 1/2 inch rise for the scoop. It would just be square but I was wondering is this going to give me problems with to much dirt and dust getting into my motor. Also I am wondering can i get some type of a airfilter or screen to stick in there or If i am going to have to make one.