340 compression variance

Sat for 16 years. Rust on the cylinders. Bust it off and run it. Compression tests are technically supposed to be done hot. I bet it gets better after it runs.
I tested the engine warm and put about 3000 miles on the engine since I bought it so it is what it is. Are the variances considered bad? My initial thoughts are break it down, inspect it, have the heads inspected, then go from there.