[dcdoug]

Sorry Tutosnake, I forgot you had a CSX. All of my comments apply to you too. , but given that, a couple of add'l comments. Have you calibrated the fuel level gauge sending unit? It's electronic and can be calibrated in a bucket, but you have to remove it from the tank and I advise making sure your tank is mostly empty when you remove it.... I can send you info if you want to do that. It will help some, but as mentioned earlier, the fuel level gauges in CSX cars are really just indicators you need to go get gas. When you see the needle first start to move on acceleration (as gas sloshes away from the sender), you have about 15 gal left.

I'm not sure of your exact build, but mine runs the same on just the mechanical pump, so I use the electrics as a reserve. (You have dual parallel fuel lines from the tank. One goes into the mechanical pump, the other goes from the electric pump in a "T" fitting with the output of the mechanical pump and the feed line up to the carb.) My understanding is that this is what the originals did too. They only had fuel pressure gauges in the comp cars and if they started to run out of gas, they would switch to the electrics with the lower pick up point and it would get them around to the pits.