Im replacing my fuel pump on my 76 monza so i decided to drop the tank put new lines and all that on it so just for spite I opened the tank up and there is alot of junk floating around in the bottom of the tank. Whats some old tricks about the best way to clean that mess outta there?? the only thing i can think of is to pour a little gas in there , slosh it around, and dump it out a few times. ANY ADVICE????