[bobdylan]

My 64 suburban did not have a filter between the tank and the fuel pump, so all the crap filled up the fuel pump. took the pump a part cleaned it out. put a filter on the tank side of the pump. In the end, I took off the fuel tank, pressure washed the inside,used muratic acid to clean, lined it with red coat. Tanks that are real bad throw a chunk of chain in it and shake it. The best redneck way is to fill with some gravel, strap it to a tractor tire, and go for a drive.