Join Date: Oct 2009
Location: Gloucester, MA
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What fuel line did you change? If it is only the one from the tank to the engine, that is a low pressure line regardless and it is fine.
The definitive way to tell is to look and see whether you have a carb or fuel injectors. The carb will be right before the cylinder with a fuel line coming into it as well as the air intake running through it. An EFI system will have something sort of similar to regulate airflow but there will not be a fuel line running to it. EFI requires a fuel injector in each cylinder so you should be able to see a high pressure fuel pump(the reason that you can't use low pressure line after it) feeding an injector in each cylinder. It is sort of hard for me to describe these things but you should be able to see pictures of them with google image to see what to look for.