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My '91 likes premium more than regular.
My old '86 never cared at all, with the 8.2:1 rotors it really doesn't car now.
On the original topic: I had my '86 buck and shake once, but it was because I had the leading and trailing plugs connected backwards. Obviously, that doesn't come and go.
I am guessing that you have a bad connection or a fueling issue (loose sock or something).
This is an interresting problem, keep us posted.
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1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers)
1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic)
Last edited by NoDOHC; 08-28-2009 at 10:42 PM.
Reason: More info
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