its the lid that covers the air cleaner that sits up top of the engine. u can put decals on the lid also.let me know if u have one.
yep that is top lid i need.This site will help to identify what need.
http://www.nicksgarage.com/aircleaner.htm
Jeff
Is this the top you are looking for?
its a big block 73-74 air cleaner base its measure 17.5 inches the i'm using the carter avs carb.There are a lot of air cleaners out there, different size base openings for different carbs and different years. You need to be a little more specific in what you need. What year, what carb???