Do I really need a steel pump-to-carb fuel line?

[Mustang_Charly]

Thanks guys, I just ordered 2 meters of steel 5/16 fuel line and will hard pipe it to the carb. Do I make a double flare for the fuel pump connection, like with brake lines?

 

[daveSanborn]

Do I make a double flare for the fuel pump connection, like with brake lines?

I don't believe so.... most carb inlet fittings use an AN type fitting.

 

[66gt350]

I don't believe so.... most carb inlet fittings use an AN type fitting.

Don't forget there are different angles of flares. the -an flare is 37° and the standard brake flare angle is 45°.

 

[pprince]

I simply went to CarQuest and got a small length of 3/8 line with the fittings installed.

I cut it to length and used a tubing bender to shape it from the fuel pump to my carb. Then used a 2" length of fuel hose to mate the steel line to the Holley. No flaring needed.

 

[buening]

Don't forget to secure the line to the water pump or timing cover. If you have a line from the pump to carb that is not secured, the steel line will eventually break from metal fatigue due to vibration.

 

[B67FSTB]

I've read to not use 100% metal, the vibration of the engine is prone to loosen the joint that way. Not sure if theres any truth to that, but it sounds reasonable to me. I used 3/8 tubing with 5 inches of -6an stainless on each side(carb and pump) to act as a buffer from the vibrations.

+1 same here.