1988 cheyenne surge

[danman6677]

My 88 350 tbi is all stock 254,000kms have changed the plugs rotor cap, ran great then I noticed the truck would take a while to start and it will surge bad then stall, in gear or at a stoplight i have to kep my foot on the gas,I just want to pinpoint if it is in a sensor, or the fuel system.

 

[danman6677]

Fixed the problem....dirty EGR, cleaned with throttle body cleaner and smooth now. But shut it off and it takes a while to start...whats that about?