Wanna make this a quick thread...what size is the breather in the back of the engine is it 1/2''? or ???? I want to put a K&N Filter on it and i dont know the dimensions that will clear the hood the of the car. Any insight would be great from your filters that you use! Thanks!!

Heres a pic incase i confused you:

 

I believe I used a 1/2 filter..bought it at Pep Boys where all the V-8 junk is at...

kind of a crappy pic for reference, but you can see the filter peeking through there at the top. hope this helps a bit, if you would like I can take it off and measure it.