[Cracker]

I second TC.

Having dynoed my 427 with accessories but with three different induction units I can shed some light on air cleaner’s effect on 427 ci motors using one carb. The results:

1) No air cleaner = 543 hp
2) Dual quad style w/ K&N filter = 532 hp 2% loss
3) Single Helling & Stellings = 521 hp 4% loss

So in my case, to my surprise the use of that little tiny air cleaner was not nearly what I thought it would be - so I use it.

Thanks again for your detailed info!