Wow, I didn't know this thread was gonna focus on air breathers this much. I glad I put my safety remark in about not using this type filter because I too have seen them fail..I do plan to run a two inch tall k&n by 14 in round with a breathe thru top lid..Normally I would run a 4 inch tall but do to space I'm going with two inch with the breathe thru k&n top.I believe this will give me enough air for the engine performance..Here's a pic of a fellow TR member's big block with motorplate,this is also the type of plate I will be using instead of traditional motor mounts(more room for headers with the plate setup)