20-50 is a bit heavy, 10-30 should be fine.
I'd also suggest using GM oil filters, Using Fram and the like can also drop oil pressure a bit.
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93Z M6 Black: The 385 Lives! Supercharged, 3-core front mount intercooler, GTP heads, 3:73's, Street twin clutch, Jethot Longtubes, Mufflex 4" catback/spintech, S+W cage, Spohn Suspenion, Yada Yada Yada
1) Build it
2) Race it
3) Break it
4) Repeat!!!
Last edited by Pampered-Z; 05-22-2009 at 07:58 AM.
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