Correct filter is on the drivers side of the tank.
Here's walbros flow charts with amperage draw.
http://walbrofuelpumps.com/media/wys...-chart-650.jpg
I would say if they are over those values at the pressure achieved and the correct voltage to the pump to look at a glow restriction.
Could also disconnect the fuel line and see if amperage draw changes to within spec at zero head pressure for a comparison, just make sure there is a hose on the pump outlet aiming I to the tank and secured, they spray some fuel!