Quote:
Originally Posted by Stan Weiss
Brian,
I seem to remember when this first came out that there was going to be a 450 cfm and 480 cfm.
Looking at Butler's web site it looks like they have downsized them.
Stan
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Old post, but butlers site has downsized yet again only offering the 430-440 cfm head on their site. However you can still get the “big port” version from BES. No clue yet how big the big port is but I will know.