4.8L Turbo going in 90 Silverado (fuel pump)

[90silvy4.8]

I have a 90' Silverado that I am going to be swapping an 06' 4.8L into. My main concern is the fuel setup. I am going to be going turbo and fuel injected. Just looking what other people have used for a fuel setup? Thanks

[Chevydillan]

I'm putting together a turbo for mine too. I'm going to be using Siemens deka 80# injectors and a walbro 430 pump through the stock lines. I guess it all depends on the power goals as to what you'll end up needing. I'm going to watching your build so keep us posted.

[90silvy4.8]

Sounds like a strong setup you have going. I know the 80# will work good because my buddy had a 4.8 with a cam and on3 78mm in a Camaro and it ran strong.

I'm not trying to run 10's or anything but would like about 450-500hp if possible.

[Chevydillan]

That's my goal as well. 500whp would make me very happy. Going to run the On3 76mm as well. Should be here Tuesday.

[kewljay223]

50-60 lb injectors should be fine and a walbro 400 will plenty for your power goal. i PERSONALLY prefer dual pumps as a just in case one fails that it wont lean the motor out too much under boost but a lot of guys here run singles. make sure filter is new or clean also.

[90silvy4.8]

How are you running your lines to your fuel rail from the tank?