Engine dies on me.

I have a 305 board .30 to make it a 308, its got a new starter, battery, pulgs, spark wires, water pump, battery cables and conector within the past few months. It is also TBI (throttle body injected), problem is that then I hit the gas peddle it will bog down like there is no fuel getting to it and sometimes die on me in the middle of the road. I have replaced the fuel filter within the past 2 weeks before all this started happening. What do I do?...........please dont leave any comments telling me to convert it back to a carb cuz you think carbs r better, I like the TBI. Thanks  

The fuel pump may not be pumping enough fuel because it is bad or there isn't enough fuel being injected. This could require some reprogramming of the ECM, upgrade in injectors, replacement of the fuel pump, or adjustment of the throttle.

My thought is with the increased displacement you need more fuel to create the proper combustion to generate enough power to turn the crank shaft so the next cylinder can do its job.

One last thing would be to check the timing. It could be retarded or advanced to much. Every fraction of a degree can make a big difference.  
'91 K1500 (Stock)
LT285/75R16
Play hard! Play soft! As long as you are having fun!

I'm an ole timer from before tbi but it sounds like low fuel. After market fuel filters should be up and down not on thier side for better flow and check your fuel lines are not getting hot next to some part of the engine or exhaust. This can cause vapor lock.