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Old 08-26-2012
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OneQwkStang OneQwkStang is offline
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Join Date: May 2011
Location: Ontario, Canada
Posts: 1,270

Originally Posted by Gearhead View Post
Any one know what our car's (420 s) max horsepower (safe) are able to put at wheel's, some tuner's are telling me 480-490 another is saying 530-550 on stock long block
Stock 4.6 block???? 500 or under is safe...but even 430 rwhp can break. Safe tune and not over reving is key to keeping it together at any HP level.
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