The fuel system turned out to be one of the easier parts of this project, thanks to a bad ass twin in tank fuel pump set up from Racetronix. This is truly a plug and play set up. No wires to cut or splice. Just pull out your pump assembly and drop this one in. Then run the wire loom up to the front of the truck and plug it all in.

Both pumps can't be run at idle or they will push up the fuel pressure. I tried it, and the pressure went from about 55psi up to over 70psi at idle. The pumps come with a Hob's pressure switch set at 4psi. This switch turns on the 2nd pump right when you need it.

The cost was $550, and you have to send them a stock fuel pump module. A single walbro 340m pump seems to be good for 600+rwhp, not sure what 2 pumps are worth, especially since I am running the stock lines, I would think 800+rwhp pretty easily. Click here for more pictures.

 pic of fuel pump set up
The only other fuel system part I have is injectors. I went with the largest high impedance injector available at the time. They are Siemens units rated at 57lb/hr. They came from Racetronix also.

In the trucks the largest injector that plugs right in is a 41lb/hr unit. These 57lb units are physically larger and have a different connector on them. Here is a link to a page a buddy of mine wrote up on what is required to get them to work on the trucks.

Right now, the highest duty cycle I have seen is 75%. Many people say not to go over 80%. Others say maxing them out is OK. I know several people going right up to 100% with no problems yet, so I will probably Max them out before I worry about stepping up in size.