Looking at AN type feed lines for 4150 style carb. Should I just go with the summit brand, AED, or Earls? Also, should I get one with the fuel pressure gauge? Any input is welcome. I know I have previously ordered summit AN fittings and ended up with two diffent shades of reds and blues.

Can't remember what brand I used, but best to stick with the same brand all the way through for the fittings. The fuel pressure gauge is definitely helpful, but watch out for some of the cheap fluid filled ones. I think one of the OSO regulars mentioned having problems with some of them going bad and reading incorrectly. Also, a little anti-seize on those aluminum threads can be helpful to prevent galling when you have to break them apart down the road.

I have all an-8 on mine from the pump to the carb. I don't have fuel pressure gauge tho. I got mine from Jegs but speedway motors has a very good selection also. I think the an is the way to go plus it adds instant 50hp just from the cool looks!! Kinda like stickers in the window of a car!!!0