what exactly are you lookin for? I think the most indepth system is the TEECER. otherwise.... SCT, JET... etc...
I'm not a fan of the emailed/canned tunes. but again, I don't know what hes looking for. if its just a basic timing bump, you can do that yourself with a timing light on the gen1s.... if your looking to do a mass air conversion... well now were getting abit deeper.... plus his in Georgia... hmm.. I don't know dick about whats down there... Head over to NLOC.NET they should be able to advise you better.