Ok guys never got into fuel systems very much. I have a walbro 255 in my stock bucket now. I have a front mount on 15lbs. I dont go lean at wot or anything but never really checked my fuel pressure. Im wanting ro upgrade. I have a stock bucket I can tear into.which would be the best option? Dual 255 or single 400 or 450? Im wanting tk keep lines and everything stock if I can. Money is tight and im expecting a baby so most of the extra money is going to baby stuff. Probably wont see over 20lbs. Ive been reading and reading just not exactly sure where to start still.

 

I put a 400 in my 06, I dont log fuel pressure but as far as IDC and AFR it seems to be keeping up just fine with a 6.0, aftermarket heads/cam and a 75mm bw at 12-15psi. 15 is as high as I go with it. 10-12 daily. If I had to do over again I would go with the 450 for a little more headroom and the e85 capabilities.

 

I say keep the current pump and either add another 255 or 450 on a hobbs switch to come on at 5-7psi.

 

Is the extra pump going to be an in tank pump or an inline pump?

 

Shove it in the tank.