Big Tyme

Dynoed my car this past weekend and found out that my max is running extremely rich. It got as low as 10:1 never saw anything above 12.5:1 except when idling. Now i'm a little apprehensive about driving hard. Read something about burning valves??? Is there any way to lean it out with anything other than an Apexi S-AFC? Was doing a little research but figured I'd see what others did. I'm not concerned with the hook up procedures as I am good with wiring and have already read the write up, just wondering if there is any other products that aren't as well advertised. Thanks.