I was hoping Guy would give us his old vs new info as well...
I like to go higher than the "bare" minimum advertised compression, stall and gear recommendations. http://www.holley.com/50157.asp
Maybe you should consider more converter (since your below the minimum recommended) until your ready to build a new motor?
Take your car down to Joe, you'll find him "very" straight forward and honest with his opinions.
Let us know what he says.