Mounted the factory fuel pump

Nice job on the conversion...

When I weld a used tank, - with the sender out,, , wash it out,, then run an exhaust hose off a healthy running vehicle into the filler opening,, let it run for quite a few mins,, I used to tape an torch to a long pole and pass it over the sender hole,, but after the first dozen or so,, I'd just go to it.. never even a "pop"..

The non-combustable exhaust gases displace any fuel/oxygen vapors..