do you have a fuel pressure gauge that you can see .Shoud be dropping at that point at losing HP . Fuel line, fuel filter
bet is the issue as others have said .

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2009 418" build dan smith built new 9.96 131.82 6.23 108 1.30 60 foot best to date 9/15/09 8in 727 430 dana 2860 lb 3040 lb w driver