You need to check the fuel pump, power to the fuel pump, fuel filter and anything else that might be related.
Top of the throttle body
The standard fuel pressure for a 1998 Chevy 3500 with a 454 engine is 50 PSI. If fuel pressure drops much below this level, the fuel injectors will not work properly.
12 to 14 pounds ?
34 Gallons
It's in the fuel tank.
headers ,, k&n filter to start and a free flow muffler
Gm vehicles do not use ineria/reset switches.
9 to 13 LBS. No higher are lower are you will have problems.
Either a bad relay, stopped up fuel filter, or fuel pump going bad.
It is the round canister in the rear center of the engine, at the firewall.
A timing CHAIN
7,000 lbs