LS/Vtec Issues!!!!!

[k24hatchback]

I ran into a problem. I finally got done building my ls/vtec and put it in. The car started and ran fine. Now it seems to start up and when I give it gas it falls on its face and stalls. Its almost like when the motor sucks in air it chokes and dies. Any ideas?

 

[ripperbone]

timing, or vacuum leak, or fuel pump, those would be the first things i would look at

 

[k24hatchback]

Timing is dead on, fuel pump is new, and i couldn't find a vacuum leak. I do want to swap throttle bodies since this one was all apart before. Any chance this could be causing the issue?