so I got s*** getting through 2 filters, going through a brand new fuel pump and getting in to another filter right before carb.... 2nd set of filters in 700 miles.....
so either I got s*** in the tank that looks like coffee grounds... or the rubber hoses are consuming themselves??????
Are any of the rubber lines in the fuel system original or is everything new? Did you install all new hard lines or are those original to the truck also? If the "coffee grounds" are black then it is probably bits of deteriorated hose.