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Old 06-03-2003, 06:22 PM
KS circutguy's Avatar
KS circutguy KS circutguy is offline
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Join Date: Nov 2000
Location: Vancouver, WA
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Had that problem in a chevy 383 I built yrs. ago.
Changed from castrol to Mobil 1.
Suggest u **** can the syntec oil.


Try it before you do anything else.
I lost 20psi running that crap in my chevy.
I know it sounds nuts but try changing to 15w-50 mobil 1.
Bet that solves your problem.

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