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Tractor Pulling Discussion Forum

ChadS

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super_m

05-17-2006 18:47:09




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when i put that 450 head on my m will i need to drill the jet out more?also what should the valve lash be set at when hot and when cold.




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ChadS

05-18-2006 08:10:41




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 Re: ChadS in reply to super_m, 05-17-2006 18:47:09  
Maybe,,,, depends on how big you drilled the jet already,, try it first, if you need to change it, you know how to. If it does need to go bigger on the jets size, one or two drill bit sizes on the main jet should get you there from where you are now. After you get the head and manifold retorqued, set the lash to .018 hot. Chad



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