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That's a great looking i tunnel ram intake. Can you tell what power increase it is worth?

On truck/tractor pull engines that require a cast intake, they weld a plate to the outside of the runners and ported further out and filled the inner sides.
Thanks. Can't really give it a HP value. Induction is usually based on an RPM requirement for a given displacement. This intake should give the customer the potential for the rpm he was looking for but making the HP is up to him. Truck pull guys are all about high rpm so cast intakes usually get welded, straightened, filled, whatever they can to make them more high rpm friendly...which usually means as much area/cross section/taper they can get. There are a lot of really good single pane intakes on the market these days so a TR may not be a huge gain over one of them, but typically you can see 40,50 even more over most single planes. One ported like this can be even more.
 
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