I have a 94 Chevy Silverado had it since 1994 has a tbi 350 and the problem I'm having is when it starts and I take off from a stop it hesitates before catching and if I tap the gas real quick while driving it acts as if it wants to stall out can anyone help I changed the iac btw it floods out if I tap the gas at idle

 

Have you checked the in line fuel filter under the chassis on the driver side?