charging problem help plz

[stang21034]

I have a 01 stang with a 4.2 long block crate motor
problem. The damn thing wants to stall i have changed
termanel conections test and charged the batt and test alt think it the alt when the car is runin the volt meter
goes to the low side from time to time this is when i use the ac and have the radio on i shutt them off
and the meter goes back to norml the was tested 2
times. both failed im sure it is the alt. But just need
some feed back if anyone else had this problem
any help would be welcomed thanks again

[l_shizzle_l]

Never had this problem, what kind of tune and which injectors are you using?

[stang21034]

It needs a tune. But i.found the prob.
It was my alt was going out so.i changed it out