You can buy the fittings that attach to the Buick rail, they come with a 6" tail of nylon hose and a union. You can make your own configuration using these replacement fittings. One tip though if you consider using them, I used a pipe flare clamp to hold the nylon tubing so I could insert the union. Without it there was no way to hold the lines rigid enough and they eneded up kinking under pressure while inserting the union.
I have the part numbers somewhere if you like, I could dig them out tomorrow if you need them.
40th Anniversary Edition
13.074 @ 106.579
FWI | 4" Intake | LQ4 | N* TB | Custom TB Adaptor | Ported SC | 2.8" Pulley | Custom Intercooler | Ported LIM | Custom Ported Heads | 105# CC Springs | Modded Retainers | Oil Restricted Push Rods | CC OE-R Lifters | XP Hot Cam | TOG | HF Cat | 2800 ST | 3.29 Gears | DHP PowrTuner | LC-1 Wideband | Engine now retired |