Many people ask or wonder where to start on assembling parts to the body? There are many variations on how to tackle this daunting task at hand. First rule of thumb is save all parts, even if you got new ones and when the car is finished. Then get rid of them. Label and bag everything, take pictures, measurements, drawings...whatever works so you have a quick reference years later.....So, I have a particular process that works well for me. The first are I tackle are the brake and fuel lines. I was fortunate because all the original lines were removed without any issues and I save them to mate the new lines too. On OE cars the criteria is use what the factory used. Which was plain steel lines. This is an area that I just cannot do. I have tried in the past and no matter what coating was placed on them they still developed surface rust in areas. Mainly the line behind the engine due to heat and condensation. The last thing I want to do is to crawl over the motor and underneath the car to refresh those areas...
Stainless steel all the way
The vendor I purchase lines from was Inline Tube...
From the pics you can the the differences between the original fuel lines and the new fuel lines. So with a little cutting, bending, and flaring they now mate with one another properly.