I've had an aerospace pump on my car since 2008. No oiling problems. I have it set to pull about 12".
The pump did fail 2 weeks ago at a true street race at rockingham...just put the new one on this past weekend.

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