Took me a while to find my run sheet, but here are the flows on my SS7 (taildragger attitude) at the firewall where the mechanical fuel pump hose connects (this is where it counts).
Right side wing tank - 1/2 gallon in 75 seconds
4 gallons in 600 seconds (10 min)
Left side wing tank - 1/2 gallon in 90 seconds
4 gallons in 720 seconds (12 min)
More than enough flow for a 912ULS that burns 7 gallons per hour at full power. Hope this helps.
Dick B