I need some help with my 95' 3000gt....

[RedHeadedDemon]

Ok heres the deal, when i start my car sometimes it runs just fine, but thats rare. Normally it takes two or three times of starting it to get it to finally kick over and it doesnt idle worth anything. sometimes it will idle really low like below 1000rpm but most of the time it just dies, when i am driving down the road it seems to have some serious lag until it hits around 3500rpms, i can keep it running at a stop by feathering the gas but its a pain. i have taken it to several people that said the could fix it but i have had no luck. here is what i have done to it so far to try and fix this. i have replaced the fule pump and fule filters, i have replaced the TPS sensor and all fule injectors, the spark plugs are new as well. several mechanics have set the timing on it , and most recently i have tried cleaning the mass air flow, it still just doesnt run right. im thinking it could be a vacume leak but i wouldnt know where to start loooking, or what im looking for. any advice would really really help thanks.

[pr0ject01]

Did you check your IAC?

[$STEALTH$]

Check your fuel pressure