when i turn off my car it keeps sputtering

"the dot" may also be off.

If you want it timed right, use a cylinder stop and find actual TDC, get some cleaner on the balancer/ damper and throw some timing tape on it, hit it with as much initial advance as your fuel can handle and worry about the rest of the total timing if you decide to blueprint the distributor spring and weight stop (advance curve) and cap phasing. Initial timing is more important than total on a driver.