How much fuel pressure should we have?

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7DUSTER3

1973 Plymouth Duster 360
Joined
Jan 3, 2007
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Hey guys,

We just upgraded our fuel system in the duster and are in the process of fine tuning everything. How much psi should it run at for everyday street usage? Right now its at 6 psi and is running stout but i don't want to starve the engine when the horses start kickin. We just replaced the fuel pump with a holley blue, all new bigger lines with a regulator and a gauge. Thanks!
 
A Holley carb should take 7 psi, but I run mine at 6.5. If I was running N2O I'd bump it up to 7. You should be fine at 6 psi.
 
Thanks ramcharger, I forgot to mention its going to an Edelbrock 750.
 
Thanks again, looks like we are right on the money then as it is just below 6. Thanks for your help!!

-Bryce
 
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