I've completed Gordon's mods and started playing around with a screen to cover the hole left over from the snorkel removal when I decided to cut the hole about an inch longer to accomodate a tuperware container with the bottom cut out so I could use the snap on lid with the center cut out to hold a screen. Looks and functions great but have I changed the air intake enough to cause to much air into the carb. In total I ended up adding about 1 1/2 to 2 square inches to the snorkel hole openning. I've rejetted 60 & 160 and ride well below any elevation concerns. Might sound like a stupid question but I thought I'd throw it out anyway.