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19Fordy · 06-17-2021, 09:37 AM

It would be interesting to find out how much fuel pressure it really takes to "overpower" a needle and seat on your carb. I ask this because if your fuel pump has a max output of 3 psi, why would you need a regulator at all?

I know that on my Holley 4 barrel it's about 7 psi. The fewer components you have in your fuel line eliminates potential component failure and aggravation.

06-17-2021, 09:37 AM	#70
19Fordy Senior Member Join Date: May 2010 Location: Coral Springs FL Posts: 10,943	Re: Fuel problem on my '40 It would be interesting to find out how much fuel pressure it really takes to "overpower" a needle and seat on your carb. I ask this because if your fuel pump has a max output of 3 psi, why would you need a regulator at all? I know that on my Holley 4 barrel it's about 7 psi. The fewer components you have in your fuel line eliminates potential component failure and aggravation.