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Paul Workman · 08-30-2017

With a ported motor and headers, I've run 12.4 at 121 mph. Similar setup and Marc Haibeck has turned in a 12.2.

Most all of the ported, headers, aftermarket exhaust 500+ 5.7L (FBI) ZR-1s with stock gears run in that neighborhood. Cutting a 11.89 sec in a stock ZR-1...is pretty remarkable - especially for a 475 chp motor.

08-30-2017	#19
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,466	Re: This belong to anyone here? With a ported motor and headers, I've run 12.4 at 121 mph. Similar setup and Marc Haibeck has turned in a 12.2. Most all of the ported, headers, aftermarket exhaust 500+ 5.7L (FBI) ZR-1s with stock gears run in that neighborhood. Cutting a 11.89 sec in a stock ZR-1...is pretty remarkable - especially for a 475 chp motor.