454 problem

[googlebobber]

My buddy has a chevy 1 ton with a 454 that he just put new injectors in and now it is running really rough as well as it still cranks and cranks when starting after it is warm does anyone know what to do.

 

[glennster]

check the fuel pump, it could be getting weak, we just did one on 1 ton 454.

 

[Brian Jasper co. Ia]

Also check the fuel pressure regulator. Pull the vacuum hose off. They are prone to leaking gas through the vacuum line causing flooding, running rich, fouling plugs.

 

[krm]

I have a problem with my 454,after it is warm it doesn't want to start on first turn,so I let punp run its 2 seconds and then try to start and it starts right up.I know that doesn't fix the problem but I don't have to crank on it either.