Fuel cells
 

Building a street/strip pro street car..wanting to run (2) 8 gal fuel cells. They have (2) -10 an fittings in bottom sump. Also (2) -10an fittings on top for vents I'm guessing. Tanks has foam in them.
I'm thinking running a -10 hose from left tank to right tank sump. Then on other -10 fitting on right tank use to feed engine. On the crossover line there be 3" drop out of tank but on right side tank the cross over line have a 2" incline to sump fitting . Then be running return line from regulator back to tank. Can I just hook it up to one of the -10 fittings on top of tanks..What tank should I run return to??
Will this idea work as to plumbing the 2 fuel cells????