Dodge Dart

[klingon]

I have a 408 stroker in my 69 dart my fuel pressure is around 3lbs with a stock fuel pump.What should it be with a new stock fuel pump? My car runs crapy the way it is now it surges all the time when I pin it Fuel lines are all stock size people say 5 to 10 lbs is good is that true?

 

[Louie70Dart]

Upgrade the fuel system with bigger lines first. Bigger engine needs more food, feed it with more gas from bigger fuel lines first off.

 

[IRISH RT]

You Will Need at Least 6 to 7lbs of pressure , Fuel Lines too small , Also change the line from the Tank , Most people forget about this , Personally I would be Running an electric pump with a Regulator and possibly a Return line,

 

[pntastar69]

You Will Need at Least 6 to 7lbs of pressure , Fuel Lines too small , Also change the line from the Tank , Most people forget about this , Personally I would be Running an electric pump with a Regulator and possibly a Return line,

A stock 5/16" fuel line will definitely handle 6psi or higher.