keep your lines under nine inches long. Preferably under 6 inches.
if your pressure line is too long, then, while you may be equalizing the pressure pulses sent to the tank, you are also decreasing the pressure quite drastically when your pressure lines get long. If you actually want your pressure line doing something for real, keep it about 6 inches.
Sure, you don't need a pressure line, but, if your going to have a huge wad of fuel tubing as you pressure line, I say just get two 1inch long pieces of fuel tubing and stick big screws in them and stick them on the fuel tank and pipe. This way your car will run forever, but, you HAVE to now how to tune well in order to keep your conrod bushing from commiting suicide
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Your fuel line should be about the same. Too long and your engine may have trouble scavenging for fuel. This makes it difficult to tune the engine.
And that concludes my lecture on fuel tubing lengths.
