since i posted on this one before figured id bring it back with an update. by chance i moved 30mins from the sts shop. took the truck to them and had it retuned because my previous tune was all jacked up. all sorts of knock. anyways here is the damage. at 8.5psi and 10psi.



had to keep it at 8.5psi, fuel pressure dropped big time at 10psi. wouldn't think i v6 was making these numbers

 

that one was my old tune which was jacked up. wish i could keep it above 400rwhp need a bigger fuel pump though or dual 255s. thanks though, its been a ton of work