He too is entitled to his opinions, and this is one of the times I happen to agree with him! (That's Charlie), whos never done anything wrong to me to me. I have Jeff's heads and Intake, they seem to work fine . I'm short on Buck's, other wise I'd maybe try Charlies upper package! Jeff's been great to me. as in lots of Help, and Charlies always been friendly at the track! Good Luck to all..........John Lang