I ran across a site that illustrated how to "possibly" get better gas mileage by modifying your airbox snorkels by drilling 4 small holes at 30 degrees close to the edge of the snorkels entrances. There was a re-call in the 80's I believe on such an issue. Unfortuately, I would love to send the website for your viewing but I haven't figured it out how - yet. I will, but time is not available. Nevertheless, has anyone comer across such reading and IF so, what are your thoughts?