Hi Dave. FYI, I just purchased two cans of exact match spray engine enamel custom mixed by Les at classic datsun in the San Diego area. A little expensive at $28 per can, but worth from my perspective. Don't know how the price compares to POR-15 however. If you ned to contact Les, here's his email address les@classicdatsun.com
New to the site and just wish to say hello. My father in law just gave me a 1971 240z, original owner care that has been in the garage for 30 years. 24k original miles. No rust anywhere. Still smells new inside. I am starting a refresh job on it and begining with the brakes. Had to haul it to SoCal from Sacramento on a car carrier as the brakes were locked up. In my garage now, and I am looking forward to this new project, Found y'all on the web and will check in from time to time with questions and updates.