I suppose you could hot wire your fuel pump with a line cracked and pump it all out, but it seems like its unnecsessary. Are you sure your tank doesnt have a plug in the bottom of it? Every Toyota EFI tank Ive seen has a drain plug, even my MR2.
When I build my stage 2 engine in my MR2, my car had sat for a year with about 1/4 tank in it. So I just grabbed a couple of gallons and put it in thinking it would be ok. Well I had rebuilt my engine and it would not start. I played around with it for so long and I finally got it to start but it had no power and it was like my timing was off like -20 degrees. But the header was at a normal temp so it wasnt spitting unburned fuel out... It was so late I just went home. The next day I was just thinking about the gas, so I completely drained all of the fuel and put in 5 gallons of 91oct and it fired straight up after a couple of seconds of cranking. Power was normal, everything was working perfectly. I had the timing set right and both cams were timed right, it was just the crappy gas. It really makes a difference...
