Gotta pull up this old thread.....
Did you ever figure it out?
I've searched 3 times now to no avail. I have (IIRC) 5/32" but it doesn't fit tight enough on the MAP sensor to me for boost.
Getting tired of searching through the MegaManual. I wished they would state the most important specs in the manual.
They give you all the theory in the world but leave you hanging on a lot of basic stuff and leave you to fend for yourself..... 
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Cory - turbo'd '87 C3.2 Guards/Blk, 3.4, 7.5:1 CR, 993SS cams, Borg-Warner S366 turbo @ 1.2-1.5 bar, Treadstone full bay IC, 70mm TB, TiAL F46 WG, HKS 1 1/2" BOV, twin 044 pumps, MicroSquirt AMP'd w/GM smart coilpack, Bilstein coilovers, Tramont replica Speedlines (285's rr, 225's frt), Big Reds frt, 993 rr., tower brace, MOMO wheel
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