[Steve C.]

Ken mentions air filters. Maybe a bit off topic but some might find this of interest....

A very long time ago I had a 'experimental' Edelbrock cylinder head that was tested on David Vizard's flow bench.
I had the opportunity to have lunch with him then and found not only a nice fellow but pretty darn smart.
It was at that time I learned a bit about the K&N filters.

Take a few minites to watch this video starting at about 4.24 thru about 14.00

I believe what you hear will be very interesting.
Much more than they get more efficient when they get dirty !
Be patient and wait until the part about 'vibration'.

https://www.youtube.com/watch?v=ow5cGV7bXCw

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