im trying to adjust timing with my diablo sport, and it seems to run better with more timing but i cant figure out how far to take it. it runs about 28* at wot, is that good, what should the wot timing be for most hp in a truck with only a cai and exhaust. i dont know if im doing this right, should i adjust for wot fuel first, and how do i do that without a wideband, this crap is confusing

 

With your mods, you shouldn't need to adjust for fuel, but you can play with the timing a tad. 28* is pretty good, mine is set a 29* WOT. I'd adjust timing until I got KR, or power started to drop off, then remove a few degrees at a time until it's just right.