Could my 340 block be filled?

Started up my car tonight and let it warm up to temp. Set the timing and let her run for a while. After shutting the car off for about 15 minutes and then turned the key and she started right up. Shut the car off again and let it sit a while and then turned the key and she started again. That has not happened in the year and a half that I've owned her. Didn't get a chance to go for a ride but I think finally she can be considered dependable. Hoping to not have to call AAA for a while. Will get a chance Sunday to take her out and give her the real test. Pretty excited