New Parts whats my 1/4et
 

Well I have a 91 Gt 5.0 with 3:55 gears,190lph fuel pump,Fuel pressure regulator,mac headers,Dynomax cat back,strut tower brace,G-load brace,Racecraft springs,Underdrive pulleys,bumped timing. Now what i have coming is a lentech aod tranny with 12 converter,shift kit,a/c delete,off road x-pipe,9mm wires,blaster 2 coil,spark plugs,msd rotor,kyb shocks and struts. Also if i removed my front seat whats the best 1/4 mile time i could get thank you for responding.

Most likely a 14.4 or so IMO.

REALLY depends. Assuming a strong motor and perfect mechanical condition, I might say 14.3 at best. I would guess around 14.6.

When does your local race track open? If it's too far away (Opening date or distance), throw it on a chassis dyno and give us the numbers. There's an Analyzer in this 'site that can figure it out for you.

I will say a 14.1-14.5

Assuming those mac headers are 1-5/8 shorties unequal, Id say 14.1 @ 100, but only one way to find out:D

Hooked up, I think you could get into the 13's.

I would say 14.2-14.6, depending on a lot of variables.

low 14's
 

I used to have a 91 GT AOD. 85k miles on stock motor. The only things that were done to it were: Pulleys, 3.73's, PI Converter, and Flowmasters. It used to run 14.7's all day.

I would guess you should be close to a 13.9 but probably closer to 14.1-14.4