#1 good luck starting it without the air hose disconnected,the mass air sensor gota have air going through it. take apart the cold air box, lift the top and shoot it through there, it wil barley roll over witout it, i foudn this out the hard way.
if your 100% shure ur pumping gas into the engine and ur 100% shure there is at least enuf spark "which sounds like u got more then enuf" to tickle the piston, and ur geting air theres just a few things left.
#1 befoire u throw any m,ore $ into it make shure u got compression in the cilinders and not a blown headgasket , u should and unles your over 100k u can loan a tool from most u.s. chain stores espicaly compresion testers
#2 ur fuel injectors are cloged bad so bad its insane but even then it would start on starter fluid which brings me back to the compression ishue.
a nice way to check this is to remove a spark plug, and have sum 1 try and start it does any gas fumes.vapors come out.
#3 u said u can smeel gas after trying to start, put liek an old sheet under the car from the gas tank to the fuel rail, see if any drips to the ground on it.
#4 timing, should be okay btw did u replace the dist rotor
#5 the groundmount system, even though u ran a wire right to the block, ive fixed so many tempos rangers and excorts that didnt wnana start not on the forum, in person because the wire coming from the neg battery post to the frame is pathetic. and its often not even metal below in fact ull see paint unles u have changed this yourself. pop the bolt of, get at least a 6ga wire i use a 2 ga oxygen 12v cable. instantly i felt a compresion increase along time ago when i did that, next i droped in 2 910 cold crank optima batteries "had a system back then" and now run 1 1200 crank optima, starting is rediclous now.
those old 610 cold cranks are good but, not enuf!
#6 the comps out
#7 its seized, u can test this by puting the car in netural, get a socket preferbily deepwal with a short extension, and a good long breaker bar, stik it to the crank bolt and try and turn it, it wont be easy but then again 1 person can do it. the 2.3 can be turned with a reg socket wrench the 3.0 defintly needs a breakerbar.
last i would say wait til it gets cold outside reallly cold and the temp of the block is nice and cold, get in the car turn the key to the on position 3 or 4 times for a full second or 2 to allow the fuel pump to get pleanty of gas ready, on the 4th or 5th turn let it presiurize 1 more time and start it depresing gas pedal maybe 10% slowly increase til u floor, if nothing, turn it 1 more time to on position, let presiurize, turn to off quickly, see if u can hear gas seem to drain back into the tank? if u can the fuel pump might be going out, if u cant and it wont start, and its cold outside ur comps proly blown because the car uses a preseting run mode to start until its warmed
forgot to add replace the silenoid "please take 1 wire of at a time btw" but u proly already know that, enshure the throttle body pins, cables, levers, springs, flux capasitors etc etc are functional and all vacume lines are connected and in good condition