I Used the 3/8 Spectra and the original lock ring. No fit issues at all but blocked the return as just a carb. Also used a full 3/8 line set from In-Line tubes all the way to the carb. No issues with gauge readings at all.
Thanks Gerald, I was thinking Inline tube for the line, sounds like you didn't have a fit issue? Looks like the Spectra gets the vote for pick-up unit! as long as i use my ring. :)
