FINALLY!! SHE's ALIVE!!!!!!! But won't idle....die's when I back off the gas-HELP!

[Stang_ROTY]

First I'd like to thank everyone who took the time to return my (many, many) posts. She finally fired up today but I had to give her gas to do so. And the minute I back out of the throttle she dies...quick!! But I don't have a check engine light on and while I got the foot on the gas man she purrs. We can't time it if it can't idle, right? Also, my engine builder was holding the throttle open to keep her going and when he touched the fender with his elbow he got a shock. And it happened more than once. anyone with any ideas?? TPS switch (is it adjustable?) or maybe fuel pressure?? Please help as she just won't idle. But when I step on it, WOW!

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Finally DONE!!
93 GT, 393 stroker w/ Edlebrock Performer heads and EFI, 30lb injectors, Dynamic Roller Mite C4, 8 pt cage, Sothside Machine bars & Sub-frames, 3.73's, '69 351W block w/SCAT crank.