“Back in the day”(95-97), I was running 10’s with the OE 5/16” line, pick up, a carter 120gph mech pump, and a wix in line filter.

Nowadays, I have little faith in the overall quality of mechanical pumps, since they are now such a tiny portion of the fuel pump market.

I’d research for a suitably reliable electric pump that would satisfy your needs, and simplify the fuel system...... and likely improve its capacity at the same time.