Plastic or metal fuel lines?

[thecrow71]

What do you think is better, plastic or metal fuel lines?
1985 Chevy K20, swapping LS3 into it.

Chevrolet Performance LS3 6.2L 430 HP Crate Engines 19434636​

Holley Sniper EFI Conversion Fuel Tanks 19-179​

Is what I am putting into it.
What kits are the best.
I am a novice, want to now what most of you use or like the best.
Thanks in advance.

 

[MarineOne]

Ptfe an lines

 

[CalSgt]

I went with Earl’s Vapor Guard EFI rated rubber lines and the Earls clamps for my EFI conversion.

I bought specific connectors that hook to my frame mounted fuel filter and to adapt to the inlet on my engine. Earl’s makes a bazillion different fittings in straight and various angles.

ETA: I also sleeved large sections with heat shield for obvious reasons

You must be registered for see images attach

You must be registered for see images attach

 

[thecrow71]

Looks nice!!!

 

[TotalyHucked]

I used braided AN -6 lines for my truck. Made them all up custom and put heat sleeve on certain sections

 

[wuznme]

Using single tank, AN fittings and braided lines.

Dual tanks, Gates FI hoses and clamps, no reason to spend money on AN/braided hoses if using pollak valve.