my third set of 255 pumps are on their way. first set locked up in ten miles, second one has been causing me fuel pressure problems since their install. I have replaced the hi/low relay, resistor, filter,fuel lines, and put the stock fuel rails back on. Took the truck up to MD for them to look the truck over. They could not find anything wrong/broken lol other than the fuel pumps. so i get to pull the pumps AGAIN this weekend.

 

What brand of pumps are you using. There is plenty of cheap china junk out there that looks like a Walbro/Bosch/Denso/etc. A true 255LHr Denso pump will run you about $300/ea. This is one area the import guys know their stuff. See what the big hp Supra's are running.

 

walbro pumps from JLP