Need To Drian Fuel Tank On 1994 Chevy S-10 Pick Up 4.3 L Z-vortec Eng. 2x2 Fuel Tank Has Anti-siphon Entrance To Fuel Tank ....need To Drain Tank To Work On Fuel Pump...whats Best Way To Drain And Remove Tank... Thanks

Sorry, no easy way. There isn't a drain on the bottom.
If you lift the box instead of droping tha tank you won't have to drain it.

It's about the same amount of work either way