Many problems
 

Aight i have a 90 n/a 5 speed and i just got the head gasket changed and then when trying to get it started after it didn't want to but i had a friend look at it and it was the fuel switch so problem solved. Well then it sat for a while again and well now just to get it started i have to jump it off and it still takes a few cranks to start it. Besides that i have to have the gas pedal all the way down and as soon as i let off the gas it dies. The whole time that i have it running I see nothing but white smoke coming out the exhaust and i mean a hell of a lot of white smoke it filled up my mother-in laws front yard and well i just have no idea what to do to fix my baby girl. Also if it helps i chanded the distributer cap, rotor, spark plugs and wires with in the past few months and the old ones were covered in oil and either not gapped white or just covered in crap so any and all help will be much appriciated.
Dumbass

If it's that much white smoke dude.. it's head gasket, the reason it won't run is because coolant is pooring into the cylinders. Look at the oil and see if it's a milky colour. And do a compression test.

the oil is fine a lil dirty but other than that its fine i was thinking it had to do with valve poblems or something like that maybe the timing but like i said i don't know but i forgot to say that the oil stinks its not sweet smelling at all and the spark plugs are covered in oil i mean dripping so to me it seems that nothing is wrong with the coolant system also the level doesn't change as far as the coolant level goes so idk.

http://www.toyota-supra.info/forums/...ark-plugs.html
That will help you on the oil coated sparkplug however thats not what is effecting you turning over.... id say your HG didnt seal properly

Yea i looked at that it helped a lot but the electrod is covered with the oil or fouled really bad and again i forgot to say something. The car has been sitting for quite some time so maybe its the gas but I don't know at this point. I'm almost ready just to drop a new engine into it just to get it running again because I really need a running car and hell why not make it my Supra.

I have had a inch of oil in the well and no problems with not getting spark.

However the slightest bit of water in there and g/l starting it lol