[Rollingbones]

I was taking a serious look at one of them. Then I started doing some research (a lot on the forum). The conclusion I came to is that I don't see how a generic chip is going to be able to program the computer in my truck for what I want and have. There's just too many variables. Also one thing I've discovered is that "cheap" tricks usually don't help and sometimes even make matters worse so I find it difficult to trust my truck's computer and engine to a $10 parlor trick. (Most who've tried it found it didn't help much if any at all). I tried the "tornado" air intake gizmo and some silly magnet dingy thing which went on the fuel line just befor the carb. I didn't pay much for either (eBay) which meant I didn't get much from either. The Tornado actually was more of a hinderance than a help.
Ergo, probably the best "computer" thing you can do is something like a Nelson Tune with a Hypertech Tune being a fairly decent 2nd choice (this was the option I took). There's a lot of dudes here which went that way and are happy yhey did. I hope this helps!!!