cant get my gt to idle worth crap!!!

SO here, I recently swapped out my stock heads and intake for a modded t-moss unit, and some home ported/sleeved p heads, with the stock cam, before It ran so well I was afraid to touch it, but I want to go fast so.... but anyway i swapped it all, and the moment of truth, I went to start it, and nothing, so I reset the timing and got it to run alright, but if you come out in the morning to start it it will rev to around 1500 sit there for a second, and then die, to get it to hold you have to do the revv deal, which pisses me off(and my neighbors) but Ive tried everything, resetting base idle, tps, timing, resetting the comp everything, and nothing works, there are no vaccum leaks so I know thats no it, nothing was changed except this, and it holds 50psi of oil on cold start so I know the engine its self is good, so any pointers here other than the usual pull codes deal? I have no cel ,either..

thanks josh :SNSign:

haha thanks guys, It was low on gas, and was running like crap lol, I reset the timing and then reset the idle at 850 and put some gas in lol, and it runs like a champ, the reason I didnt change the cam is that its an aod and I still want it to drive well, without bucking and crap all the time..