Originally Posted by MILD THUNDER (Post 4525545)

Something else to consider, is installing an air temperature gauge in your bilge, or even better, in your intake manifold. Its a scientific fact engines make more power with cooler air. Thats what correction factors are for. Whike you may see 700hp corrected on the dyno, that doesnt mean thats what youre seeing in the boat, if the engine is being fed hot air.

Same goes for available air. Biggest carb or biggest exhaust, or best flowing heads, arent gonna do anything, if youre starving the engine for air.

I know we talked about that last year, but most boats, esp the okder ones, dont have enough bilge venting to support 1400hp worth of air.

Originally Posted by MILD THUNDER (Post 4525540)

Maybe its 10hp, maybe its 40hp, who knows. But at least youll have a solid reference, and can then decide if its worth spending the money on.

Originally Posted by phragle (Post 4525471)

So with the risk of used headers, how much power is there to be gained in headers vs your sm;s? and what does that power increase equal in increased mph? now is that increase worth the possibility of a leak and the possibility of a gernaded engine? Yes, your buddy can hot glue stainless,but you have to be lucky enough to find a leak first before it does damage.

Headers can most definitly ,make more power which can make more speed but only you can decide if the risk is acceptable. As far as the holes in the transom lining up... its not that difficult to plug and recut if they dont. You have a white solid color boat, not some mega dollar spectral vomit paint job to match so its really not that hard.