need some input

[Bigdog]

Ok guys i have a problem, up till 2 weeks ago my truck was running well (apart from the motor oil dripping on the ground) I have just install the following parts
a Turbonetics Hi-Flow exhaust housing
Non Exhaust Backpressure Valve (EBV) Turbo Pedestal
a Stage One Stealth High Pressure Oil Pump with a 4 line outlet
ITP 7.3L "Bowl Delete" Regulated Return Kit
and now it idles rough when it get to it's operating temp and some time runs rough when driving , have replace both filters on Fass and did a oil change from semi synthic (15w 50) to a Synthetic (5 w 40)
So if you have a idea on the problem let me know as all idea will be look at.
Thanks

 

[JLDickmon]

first thing that comes to mind is that regulated return kit causing fuel pressure problems..
do a FPR shim mod and see if it gets any better..

if not,
I'm gonna tell you to start taking your mods OFF one at a time untill the problem goes away.. (you did something, now there's a problem, first thing is UNdo what you did)

 

[Tail_Gunner]

X2 on the regulated fuel mod.

When doing mods, it is often wise to do them one at a time for that very reason. If there is a problem after installing one mod, it's easier to trouble shoot.

Good Luck.