To follow-up on what these other guys have said, are you sure that dipstick was calibrated? Doesn't sound like it. Most of the original style pans from Aviad/Armando/Kirkham are 9qt pans. When I changed from a smaller Canton pan to the Kirkham pan, I did the following:
Drain pan and fill pan with 8 qts and let sit overnight without starting the engine. Mark dipstick as "low". Add another quart (still don't start engine) and mark as "full". Assuming you replaced the filter too, then add 1 add'l quarter for the rest of the system.
Then start it and add
oil if necessary to bring it back up to the "full" mark. Obviously you need to make sure your dipstick is making it all the way down into the pan.
__________________
“There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games.”
www.partskeeper.com
(Less time searching, more time wrenching & driving)