Mustang Won't Start.

so I had my 2001 v6 up on jackstands for about 6 months (lazy with suspension work, and i got a new toy, 99 cobra vert, so there was no rush).

I finished up the suspension work finally, went to start my car and it won't start, battery is fully charged, it's been sitting for 6 months with a half tank of gas too.

I sprayed starter fluid into the throttle body, and it started up and ran for about 3 seconds.

My fuel filter is fairly new, less than 10k miles on it, so i'm doubting that's clogged, and the fuel pump fuse is fine.

I really don't want to hear it's my fuel pump, allthough i have a feeling it is.

Anyone have any ideas for other things to check?

Also where is the schrader valve for the fuel system? I can't seem to find it.

i don't think it's the IAC because it recently went on my cobra and the only way i could keep it running was by giving the car gas.

I tried giving the car gas (tried partial and WOT) and it still didnt start. I gave it gas after starting it with the starter fluid and it almost immediatly died.