Need help with a tune!

[Fulyb0lted281]

u7146 2003 mustang gt

light weight driveshaft
4.10 gears
plenum spacer
colder plugs
coil pack
off road h pipe
plenum
75mm throttle body
flowmaster super 40 catback
predator tuner
bruteforce cold air intake
typhoon manifold
bbk shorty headers
bbk under drive pulley

I have the o2s turned off because no cats. Rev limiter is set at 6500 in drive. spark advanced from 2-4 is 5 advanced and from 4-7 is 3 advanced.
air/fuel 2-4 is 7.50 lean and 4-7 is 4 lean. runs good. still just wanted to get some professional advice!

[Vas@Diablosport]

If "air/fuel 2-4 is 7.50 lean and 4-7 is 4" means fuel trim, then you are definitely running lean. You should try adding some fuel from 4-7k rpms, and even more from 2-4k rpms. You want to get that fuel trim dialed in between 0 and -2.

[Fulyb0lted281]

so between 0 and negtive 2 is good right now im am -5 to -10 so i will deff change it! any other good advice. i have a 50 shot but i havent sprayed yet what should i do to run the shot. if you go to youtube and type in mustang gt 35 roll, with blue gages thats mine.

[Vas@Diablosport]

You will have to retard your timing using the Predator. You will have to contact your nitrous manufacturer to find out how much.

Thanks.

[Shaken]

You will have to retard your timing using the Predator. You will have to contact your nitrous manufacturer to find out how much.

Thanks.

Yeah what he said and add a wideband o2 controller and data logging gauge.

[Fulyb0lted281]

thank for the advice. im shoting for 350+rwhp what do you think i will get?

[Fulyb0lted281]

and i changed my air/fuel to 2-4 is 3 lean and the 4-7 is 2 lean but i need to dirve it and see what its runing i will keep you all posted thanks again