Any hot rod shop should carry it 14" round with like a 1 1/2" tall filter im not body dropped but i have like 3 to 4 inches from my wiper cowl ill try to post some pics.
mines b/d 6" total i just cut out section of wiper cowl. got a second hood sectioned it widthwise put it all back together to make a 4 1/2" cowl hood with factory body lines in it.