Having some idle problems...please help, details inside

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Hello all, this is my first post for these forums, I am now the proud new owner of my 1989 Toyota Supra Turbo with the 5spd. Bought from my friend for $1300, it stopped running and they have 6 cars and did not want to work on it any more. Got the Car on Friday and got it running late Saturday, ended up being a bad battery, where as his dad thought the ECU was friend.

So here is what I am dealing with, got it fired up, but it is doing several things, it won't hold idle until it has been warmed up for about 10 minutes, it idles at about 1800RPMs, when I adjust the idle screw and bring it down to 650RPMs (i think thats where its supposed to be at), it will sputter and die. When I took it on the road I would be petal to the ground and the car would slowly accelerate until it hits about 3000RPM where it is a bit better.

The car has a new head gasket done, ARP head bolts, torqued down to where it should have been. New water pump, new starter, new set of injectors, iridium spark plugs, new wires. I am throwing a low coolant level overflow light (the birdcage) and it is about 1/4 filled in the resevoir, but it was sugested that it could be the sensor in there. Any suggestions are very much appreciated.



Here is a couple pictures of my new baby...
http://i50.photobucket.com/albums/f3...e/DSC02250.jpg

http://i50.photobucket.com/albums/f3...e/DSC02249.jpg

http://i50.photobucket.com/albums/f3...e/DSC02239.jpg

...oil is not from the supra, from one of my roomates cars.