Weird question: does anyone happen to know the size of the hole in the brake booster where the fitting for the vacuum line goes? I'm not satisfied with the way I have the vacuum line from the LS intake manifold (very big line) stepped down to the original fitting on the Jaguar brake booster. I want to replace the OEM one with a fitting that accepts a larger diameter vacuum line, but before I do so (and potentially break the existing one) I wanted to see what size I needed to track down....