In message <970421145454_-1334023163@emout08.mail.aol.com> EICHSTEV@aol.com writes: > Altitude compensation really isn't necessary unless you're running at the > limit of the turbo. 'Tain't what the book says. A lot of the setup/measurement values are _VERY_ sensitive to altitude. -- Phil Payne phil@sievers.com Committee Member, UK Audi [ur-]quattro Owners Club