Just got an edge evo have been playing around with it trying to set up a customizable tune. I have a xlt 2008 screw 4x4 should I change the gear ratio at all or anyone have any good custom tunes. I have also been thinking of downloading the gryphon from php. Any tips?

 

Set it to your correct tire size and gear ration and i don't know too much about the rest but yes I just downloaded gryphon from PHP and it helped a good bit

 

I don't know your situation, but don't change the gear ratio unless you have switched from stock.

 

gear ratio and tire size shold be accurate to what yo have. timing and fuel ratio is what you can play with. there are plenty of threads about it.