[Jeff Lee]

Agree w/ SSDiv6. I can tell you my Stocker ram-air '70 AMX did not slow at all with a 12" K&N with matching filter-charger top piece. I always ran it. There is a lot of dust in the air here in AZ and it's not worth paying for new cylinder walls, pistons, etc., for even a few hundreths in my opinion. Now that I run SS, I have a hi-rise intake and a filter is no longer an option. Wish it were...