I was having this conversation with some hot rodders and we don't know which is true. I put it to the HamB. When it comes to gas line, That is the line from the fuel pump to the carb. What is the best material to use? Steel line, braided line or aluminum. This one guy was using rubber fuel line and was having problems I think with the hot weather we have been having his gas was boiling before it got to the carb. Although the car was running ok in the early part of the day it started to really "acting up" would not idle and would die as he backed up. What do you guy's think?