YAWTDI -- you could use an anonymous function...

sub { for(map{$_*2} 0..$#_/2) { $bfb->{$_[$_+1]} = $ofb{$_[$_]} }}->(q
+w[camshaft camshaft ...]);
[download]

Or, alternatively:

sub { my%g=@_; for(keys%g) { $bfb->{$g{$_}} = $ofb{$_} }}->(qw[camshaf
+t camshaft ...]);
[download]