they are under rated because ford got sued by over rating the older cobras...Originally Posted by dubs03rsx
390/390 crank is what it is rated at....
dyno sheets with CAI and CB have hit into the 420's noob
they are under rated because ford got sued by over rating the older cobras...
390/390 crank is what it is rated at....
dyno sheets with CAI and CB have hit into the 420's noob
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