You need to run a hose out from the compressor. Put a tee on the end of it. From the tee run one line to the bottom port of the WG. The other end of the tee run a line to the boost bleeder/air regulator then to the top port of the WG. With the bleeder/ air reg closed you will get all boost to bottom port opening up spring in WG very fast hence only having 10 psi. With bleeder on top line opened a little bit some boost now goes to top port and pushes down on spring keeping WG puck sealed longer creating more boost.
Clear as mud? 
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87GN GT6776bb, stock bottom end, stock heads/intake, 206/206 roller, 60# inj, PTE SLIC, Tranny by B. Hofer, PTC 10" 2800 Conv, Turbotweak, 93 octane & Alkycontrol 
11.20@118 mph 1.71 sixty foot(leaving at 0 boost)
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