Re: fuel pressure?
Does that type of carb use an adaptor and a weatherhead type fitting? Not a ford nut type fitting? I'm only familiar with regular 94 type carbs.
Sorry no direct experience, but here's some input anyway.
Brakes don't leak from the fittings with a thousand plus psi applied to them. If the fuel is leaking from the fittings it is not because of the 5psi pressure. It is because of faulty fittings.
If the fuel is overcoming the needle valve and then subsequently leaking down the carb and dripping off the fittings, then it is either the needle valve faulty or excessive fuel pump pressure.
FWIW I have had success using an older weaker spring in an otherwise newer pump to overcome a fuel pressure problem. I have also swapped more modern needles out for steel tipped needles to stop leaks too.
Mart.
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