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-   -   500 EFI question (https://www.offshoreonly.com/forums/general-boating-discussion/329546-500-efi-question.html)

tf2ttt 08-13-2015 02:38 PM
Originally Posted by VoodooRob (Post 4342373)
You've been doing your research don't know if you are aware 500 EFI is rated 470 HP at the propshaft, 525 EFI is rated 525 at the propshaft.
Yeppers. Thanks!

Wildman_grafix 08-13-2015 03:31 PM
Originally Posted by VoodooRob (Post 4342373)
You've been doing your research don't know if you are aware 500 EFI is rated 470 HP at the propshaft, 525 EFI is rated 525 at the propshaft.
That sounds about right we ran mine on a dyno with full accessory's and wet headers. They were right at 511 and 515.


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