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Believe it or not I had the same problem as you with my Mallory pick up. I coudn't afford to sump it instead at the time, so I decided to slightly modify the Mallory Pickup. I drilled a hole in the pickup and welded a 3/8 steel (Flared) tube into it, so I basically had two return line's. I put a Y Block in the return outlet on my regulator and ran the 6AN hose to the return tube Mallory put on the pick up and then ran 3/8 steel line to the return tube I put on the pick-up. Flare the steel line, clamp a short length of High Pressure rubber line to both end's and your set. It worked great for me, brought my pressure down, and I have no leak's or anything. The two return line's end up being better than just the one -8 return line. Probvlem solved! It may sound complicated but it was very easy.