One piece gas line

[THEFERMANATOR]

I see you have an actual marine carb now, that one ought to work nicely. I personally would be looking for stainless line, if you can't find it then use coast guard approved marine grade rubber line. It may not be completely legal, but it works just fine on outboards. Just find some hose barb fittings that fit into your pump and then your carb, and run at least a 5/16" line. HOLLEYS are notorious for starving for fuel under load. 1/4" will not feed that carb under a hard load and could cause you to lean out and burn a piston. Use brass fittings with an extra long barb on them and double clamp with marine grade hose(DON'T USE AUTO HOSE!, you'll be begging for a problem). And the filter after the pump is for in case you have a pump failure or a piece of the diaphram comes loose it won't cause the needle and seat to stick open and allow raw fuel to spill out.