302 heads on a 360?

With that cam, rear gear, converter, you should have a good running combination in an A Body. What compression ratio will you finally end up with? I'd suggest you get some new valve springs that are good to .500 lift to go with that cam. It's been so long since I've run the 1/4 mile, I'll let some of the more recently experienced members take a guess at a timeslip. :)