holley strip dominator intake

[tunnelvision69]

my 509 9.5-1 compression with rpm rect port heads & custom cam for 5800rpm peak has a holley strip dominator manifold with a 850 holley. would it be worth the money to change to a dart, brodix etc? which manifold would you suggest? looking for 15 or more hp to make it worthwhile. the boat is a 26 american offshore so top end hp is the goal.

 

[Trim'd Up]

No, I don't think it would be worth the money. Even if it did get you 15 hp, you wouldn't be able to tell it in the boat. The Holley is pretty similar to the dart anyway.

 

[tunnelvision69]

thanks