Author Topic: stock Pontiac Super Duty 421v8/405hp vs stock Chevy 409 on Dyno  (Read 4413 times)

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joe74ta

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stock Pontiac Super Duty 421v8/405hp vs stock Chevy 409 on Dyno
« on: September 03, 2013, 08:31:30 PM »

LeighP

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Re: stock Pontiac Super Duty 421v8/405hp vs stock Chevy 409 on Dyno
« Reply #1 on: September 04, 2013, 08:26:04 PM »
Cool....I like both those engines.  :cool:
Regards,
Leigh
1969 Pontiac Firebird 400

 

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