Not Ranked
Just keep in mind, before you embark on upgrading your existing 351W engine that you can buy a complete crate engine like a 408/410 from KC for about $8,000. Maybe less, if you delete some things you don't want or need.
Yes, I know it's considerably more money, but when you buy an engine like this or one from any of the good engine builders around the country, you get a complete engineered and dyno'ed package.
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