That must be a stout little four banger. Other than increasing your outlet size on the actual tank and hose Dia the only answer would be to install a pump.
I ran a single Stromberg 48 (the 97's slightly bigger brother) on my Model A banger without a pump for a good year or so. It works fine until you go below 1/4 in the stock cowl tank. Not a big deal, but kinda annoying. Your milage may vary...
Mine worked ok around the house, where it gets most of its use. It would get starved at higher rpms with a lower fuel level.
I have installed Reds Tube Headers and an Ansen Intake Manifold with a Smithys Muffler. Right now getting rid of the old crab stock distributor and installing a FSI Distributor.
Did you have to change out anything to run the 48? I figured it would be too much for a stock banger motor, did you have any hop up type items on the motor? I just got a scalded dog intake with a stromberg 48 carb.
The OP hasn't been on here since 2018 and the post you quoted asking this question hasn't been on here in more than a month. I gave up on running a 48 on a banger but if you have one you can try. It really is too much carburetor for a banger and it has more to do with velocity thru the carb It will need some jet and power valve changes if you run it.... If you run gravity....upsize the fuel line to 3/8". I found some barbed hose fittings for the Stromberg ...I see 5/16" right off the bat...even that would help
here's my question to you,... do you think the fuel line goes dry??? if you up the fuel line size, isn't the limit set by the inlet valve?? for me upping the fuel inlet valve fix'd my fuel starving problem,.. running a 97, with a stock model a tank... it's my thinking that even if you had a 3'' fuel line the limit of gravity will still be at the inlet valve....???? correct??? or am I wrong???
I don't think the "fuel line goes dry" but the smaller diameter becomes a restriction to the flow. So to increase the flow you could; A) increase the fuel delivery pressure (which is just the gravity head of the fuel in the tank....someone mentioned that below a quarter tank his set up didn't perform so well) or B) increase the diameter of the supply line or the area that the fuel has to flow in...bigger the hole the faster liquid leaks out .....so, this all said, with the smaller diameter fuel line in my experience, it becomes a limiting factor before the float valve does with gravity feed. I think a needle and seat is the most restrictive and I Grose jet style carburetor inlet valve. The best way to address the fuel delivery is with the addition of pressure delivery of the fuel...Old school was a hand pump to pressurize the tank.....
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