I don't have a problem w/ this either. I have a Moroso 4 vane pump and the regulator is mounted on the inlet of the pump. I use an Aerospace components catch can.
There's never much in the can, but I drain it after I get home from the track. Mostly water and a little oil.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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