silverpony405

hey guys i have been browsing this forum for a while now and just wanted to know what you guys think about my build and if you have any suggestions and tips on my stang project. i have a 91 mustang gt. here are the things ive done to it. rebuilt the low end new bearing all replaced to stock specs. trickflow heads and intake, f303 cam, 70mm egr mass air and tb, msd blaster coil, 373 gears, pro 5.0 ss, electric fan, underdrive pullys, stock fuel pressure reg(think this is hurting me), 24 lbs injectors, subframe con (weld in). 2.5 inch exhaust with x pipe and dynomax super turbo mufflers. and did all the other tricks your suppose to do like tps to 0.99 volts stuff like that. so im now to the point where it is idles great and driving it around the house but it seems at low end not alot of power but pulls real hard aroung 3000 or 3500 rpms and when i slow down it trys to die then jumps up to 1500 rpms then will try to die agian. any input on this project????

badloser

Have you cleaned your AIC valve? Sometimes the get carbon build up in there...

mjr46

auto or 5 spd??

saleenpride1986

I have a SIMILAR set up, and mine did that until i turned up the manual throttle position. The little bolt or screw thats underneath the throttle body perhaps turn it a little so that your idle is up just a little bit, like 50 maybe 100 rpm. One of the things that was happening with me was that the idle would drop so fast when i engaged the clutch, that it would drop too low and the car would then try to kick itself back up past stalling or choking idle point, then would die because it was too low of an idle.

Maybe just adjust the tb bolt a little and see from that, also have you done the idle relearn since you've done all the work to the engine?

silverpony405

hey guys thanks for the input guess i forgot some things. it is a 5 spd and at first had the problem with the idle up to high idling around 1300 or 1400 rpms so i backed if off where it would idle about 800 rpms so maybe turn it up a bit and see what it does.
But yes i clean the AIC and seemed to help the idling problem. anybody have an idea bout that horse power ill be at ?