I built a mud truck out of my 97 f350. I removed the dual tanks to run one larger bronco tank. I built it 3 years ago and its been a great truck. I started having trouble when the truck would just lose fuel pressure and stall. I changed the fuel pump and theproblem went away. Now I don't know what its doing. I can drive it around all day and not have any issues at low rpms but as soon as I try to race it the truck will go half pit and shut off like it runs out of fuel. Hit the key and it starts right back up no trouble. No engine lights. Anybody having similar trouble?