89FORD50

ARE FACTORY FUEL LINES BIG ENOUGH TO SUPPLY 36 LB INJECTORS

uedlose

I ran 42s with stock lines but I have heard that 30s is as big as you should go but like I said I ran 42 for a year and low 11s with stock rails but I did just upgrade the whole system rail lines and big pump. In hope of that 10 sec. pass as the car was a little lean with the stock stuff.

tinman

There is a 40% flow differance from 5/16 to 3/8.
If you have a return line on the system I think that it wouldn't hurt anything to go a bigger line......
Fuel has to be at the engine in order for the injectors to use it..........