Dave, do what I do. Mentally calibrate the gage so you can interpertate the varoius meanings of the needle. Next calibration should be at 3/4 tank and 1/2 tank. MIKE KOVACS ----- Original Message ---- From: David Heath <dheath at vanceandhines.com> To: virtualvairs at corvair.org Suggestions? Dave Heath Cypress, CA '65 Coupe 140-4