fordsbyjay
Active Member
I have some FAST fuel rails for a project. The ends are not tapped for fittings. I have some -6 AN flare to -8 straight cut O-ring fittings. My question is what tap do you use for the -8 straight cut O ring end? I have looked all over the interweb and can not seem to find any info ORB threads at all making me think it is something easy but I have no idea. 
Below is a link similar to the fitting I am referring to.
http://www.summitracing.com/parts/sum-220167b/overview/

Below is a link similar to the fitting I am referring to.
http://www.summitracing.com/parts/sum-220167b/overview/