SOoooo, I went out to get HOSED at the Mako ho' Company. Great place. My 1st visit.
So we found threads to match the fuel rail port. Then some grinding of a hex nut anda spit anda dis/dat. I got confused. Haha. Pipe tube thread here, 1/8 NPT close, British, yikes...and whalah!! a nice solid mating to the new fuel pressure regulator standing on the fuel rail. Little tiny piggyback gauge will be fine for my NA build.

I am re-conditioning a B18C1 intake manifold. Does anyone know where the FPR vacuumn originates?? I am thinking it comes from the black canister in the rear intake manifold area. I know my "butterfly" pot gets its vaccuummnn from the rear canister. I know a vacumn tube comes down from the IM manifold chamber and has a split. Does one split go to the FPR?? Thanks. RFT.