Recently I ran -6 lines with A/N fittings from my Holly Blue to my FPR, and when I tried to hook up A/N lines from the FPR to my 465, I couldn't get anything to fit the fuel pickup on my Holly. I'm assuming that the threads on the Holly are very specific, and there is no way to hook A/N lines to the carb. Am I wrong?

 

I had to use adapters on my Holley 650 double-pumper. I don't know the thread size because they came with the dual feed kit I bought.

Rich