You need .5 pounds of fuel for 1 HP per hour... its
just math... but all of use run WAY more than needed
when it comes to pumps.. BUT hopefully its the last
one you ever buy... I have tended to buy 2 cheaper pumps
as in the blue Holleys and run them in parallel for
the volume(pounds per hour) and it ends up cheaper
than 1 big pump.. by a lot